chore: Update discovery artifacts (#1853)

## Deleted keys were detected in the following stable discovery artifacts:
chat v1 5d5705d
streetviewpublish v1 af184b8
vmmigration v1 34db6c3
youtube v3 57b9539

## Deleted keys were detected in the following pre-stable discovery artifacts:
compute alpha 6df7615
gkehub v1alpha 73a9ebb
vmmigration v1alpha1 34db6c3

## Discovery Artifact Change Summary:
feat(alertcenter): update the api 66596c0
feat(androidenterprise): update the api 0213854
feat(assuredworkloads): update the api 16e5ede
feat(beyondcorp): update the api 2cb54c8
feat(chat): update the api 5d5705d
feat(cloudchannel): update the api 757d79e
feat(cloudidentity): update the api b22e69a
feat(compute): update the api 6df7615
feat(connectors): update the api 922d704
feat(datastream): update the api bba182f
feat(dialogflow): update the api dfb3217
feat(firebase): update the api e7aecbf
feat(gkehub): update the api 73a9ebb
feat(iap): update the api aa98e50
feat(monitoring): update the api 7c1a731
feat(networkconnectivity): update the api fb6bc73
feat(retail): update the api f4231eb
feat(securitycenter): update the api 14c35b6
feat(spanner): update the api 0daa6e2
feat(sqladmin): update the api 2545e9b
feat(storagetransfer): update the api 57d8d5a
feat(streetviewpublish): update the api af184b8
feat(vmmigration): update the api 34db6c3
feat(youtube): update the api 57b9539

Author: yoshi-code-bot

docs/dyn/analyticshub_v1beta1.organizations.locations.dataExchanges.html

@@ -109,7 +109,7 @@ <h3>Method Details</h3>
   &quot;dataExchanges&quot;: [ # The list of data exchanges.
     { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
       &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-      &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+      &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
       &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
       &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
       &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.

docs/dyn/analyticshub_v1beta1.projects.locations.dataExchanges.html

@@ -126,7 +126,7 @@ <h3>Method Details</h3>
 
 { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
   &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
   &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
   &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
   &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.
@@ -145,7 +145,7 @@ <h3>Method Details</h3>
 
     { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
   &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
   &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
   &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
   &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.
@@ -188,7 +188,7 @@ <h3>Method Details</h3>
 
     { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
   &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
   &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
   &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
   &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.
@@ -273,7 +273,7 @@ <h3>Method Details</h3>
   &quot;dataExchanges&quot;: [ # The list of data exchanges.
     { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
       &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-      &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+      &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
       &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
       &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
       &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.
@@ -310,7 +310,7 @@ <h3>Method Details</h3>
 
 { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
   &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
   &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
   &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
   &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.
@@ -329,7 +329,7 @@ <h3>Method Details</h3>
 
     { # A data exchange is a container that lets you share data. Along with the descriptive information about the data exchange, it contains listings that reference shared datasets.
   &quot;description&quot;: &quot;A String&quot;, # Optional. Description of the data exchange. The description must not contain Unicode non-characters as well as C0 and C1 control codes except tabs (HT), new lines (LF), carriage returns (CR), and page breaks (FF). Default value is an empty string. Max length: 2000 bytes.
-  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
+  &quot;displayName&quot;: &quot;A String&quot;, # Required. Human-readable display name of the data exchange. The display name must contain only Unicode letters, numbers (0-9), underscores (_), dashes (-), spaces ( ), ampersands (&amp;) and must not start or end with spaces. Default value is an empty string. Max length: 63 bytes.
   &quot;documentation&quot;: &quot;A String&quot;, # Optional. Documentation describing the data exchange.
   &quot;icon&quot;: &quot;A String&quot;, # Optional. Base64 encoded image representing the data exchange. Max Size: 3.0MiB Expected image dimensions are 512x512 pixels, however the API only performs validation on size of the encoded data. Note: For byte fields, the content of the fields are base64-encoded (which increases the size of the data by 33-36%) when using JSON on the wire.
   &quot;listingCount&quot;: 42, # Output only. Number of listings contained in the data exchange.