chore: Update discovery artifacts (#1402)

## Discovery Artifact Change Summary:
feat(metastore): update the api 54639a0

Author: yoshi-code-bot

docs/dyn/alertcenter_v1beta1.alerts.html

@@ -248,7 +248,7 @@ <h3>Method Details</h3>
     &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this metadata was last updated.
   },
   &quot;securityInvestigationToolLink&quot;: &quot;A String&quot;, # Output only. An optional [Security Investigation Tool](https://support.google.com/a/answer/7575955) query for this alert.
-  &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Domain wide takeout * State sponsored attack * Google identity
+  &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Data Loss Prevention * Domain wide takeout * State sponsored attack * Google identity
   &quot;startTime&quot;: &quot;A String&quot;, # Required. The time the event that caused this alert was started or detected.
   &quot;type&quot;: &quot;A String&quot;, # Required. The type of the alert. This is output only after alert is created. For a list of available alert types see [Google Workspace Alert types](https://developers.google.com/admin-sdk/alertcenter/reference/alert-types).
   &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this alert was last updated.
@@ -321,7 +321,7 @@ <h3>Method Details</h3>
         &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this metadata was last updated.
       },
       &quot;securityInvestigationToolLink&quot;: &quot;A String&quot;, # Output only. An optional [Security Investigation Tool](https://support.google.com/a/answer/7575955) query for this alert.
-      &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Domain wide takeout * State sponsored attack * Google identity
+      &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Data Loss Prevention * Domain wide takeout * State sponsored attack * Google identity
       &quot;startTime&quot;: &quot;A String&quot;, # Required. The time the event that caused this alert was started or detected.
       &quot;type&quot;: &quot;A String&quot;, # Required. The type of the alert. This is output only after alert is created. For a list of available alert types see [Google Workspace Alert types](https://developers.google.com/admin-sdk/alertcenter/reference/alert-types).
       &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this alert was last updated.
@@ -386,7 +386,7 @@ <h3>Method Details</h3>
     &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this metadata was last updated.
   },
   &quot;securityInvestigationToolLink&quot;: &quot;A String&quot;, # Output only. An optional [Security Investigation Tool](https://support.google.com/a/answer/7575955) query for this alert.
-  &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Domain wide takeout * State sponsored attack * Google identity
+  &quot;source&quot;: &quot;A String&quot;, # Required. A unique identifier for the system that reported the alert. This is output only after alert is created. Supported sources are any of the following: * Google Operations * Mobile device management * Gmail phishing * Data Loss Prevention * Domain wide takeout * State sponsored attack * Google identity
   &quot;startTime&quot;: &quot;A String&quot;, # Required. The time the event that caused this alert was started or detected.
   &quot;type&quot;: &quot;A String&quot;, # Required. The type of the alert. This is output only after alert is created. For a list of available alert types see [Google Workspace Alert types](https://developers.google.com/admin-sdk/alertcenter/reference/alert-types).
   &quot;updateTime&quot;: &quot;A String&quot;, # Output only. The time this alert was last updated.