fix(vmmigration): update the API

#### vmmigration:v1alpha1

The following keys were changed:
- schemas.Location.description

#### vmmigration:v1

The following keys were changed:
- schemas.Location.description

Author: yoshi-automation

discovery/vmmigration-v1.json

@@ -1972,7 +1972,7 @@
       }
     }
   },
-  "revision": "20230330",
+  "revision": "20230420",
   "rootUrl": "https://vmmigration.googleapis.com/",
   "schemas": {
     "AccessKeyCredentials": {
@@ -3408,7 +3408,7 @@
       "type": "object"
     },
     "Location": {
-      "description": "A resource that represents Google Cloud Platform location.",
+      "description": "A resource that represents a Google Cloud location.",
       "id": "Location",
       "properties": {
         "displayName": {

discovery/vmmigration-v1alpha1.json

@@ -1972,7 +1972,7 @@
       }
     }
   },
-  "revision": "20230330",
+  "revision": "20230420",
   "rootUrl": "https://vmmigration.googleapis.com/",
   "schemas": {
     "AccessKeyCredentials": {
@@ -3437,7 +3437,7 @@
       "type": "object"
     },
     "Location": {
-      "description": "A resource that represents Google Cloud Platform location.",
+      "description": "A resource that represents a Google Cloud location.",
       "id": "Location",
       "properties": {
         "displayName": {

src/apis/vmmigration/v1.ts

@@ -1040,7 +1040,7 @@ export namespace vmmigration_v1 {
     message?: string | null;
   }
   /**
-   * A resource that represents Google Cloud Platform location.
+   * A resource that represents a Google Cloud location.
    */
   export interface Schema$Location {
     /**

src/apis/vmmigration/v1alpha1.ts

@@ -1061,7 +1061,7 @@ export namespace vmmigration_v1alpha1 {
     message?: string | null;
   }
   /**
-   * A resource that represents Google Cloud Platform location.
+   * A resource that represents a Google Cloud location.
    */
   export interface Schema$Location {
     /**