fix(analyticsadmin): update the API

#### analyticsadmin:v1alpha

The following keys were changed:
- schemas.GoogleAnalyticsAdminV1alphaBigQueryLink.properties.project.description

discovery/analyticsadmin-v1alpha.json

@@ -4886,7 +4886,7 @@
       }
     }
   },
-  "revision": "20240731",
+  "revision": "20240821",
   "rootUrl": "https://analyticsadmin.googleapis.com/",
   "schemas": {
     "GoogleAnalyticsAdminV1alphaAccessBetweenFilter": {
@@ -6037,7 +6037,7 @@
           "type": "string"
         },
         "project": {
-          "description": "Immutable. The linked Google Cloud project. When creating a BigQueryLink, you may provide this resource name using either a project number or project ID. Once this resource has been created, the returned project will always have a project that contains a project number. Format: 'projects/{project number}' Example: 'projects/1234'",
+          "description": "Immutable. The linked Google Cloud project resource name. Currently, this API always uses a project number, but may use project IDs in the future. Format: 'projects/{project number}' Example: 'projects/1234'",
           "type": "string"
         },
         "streamingExportEnabled": {

src/apis/analyticsadmin/v1alpha.ts

@@ -905,7 +905,7 @@ export namespace analyticsadmin_v1alpha {
      */
     name?: string | null;
     /**
-     * Immutable. The linked Google Cloud project. When creating a BigQueryLink, you may provide this resource name using either a project number or project ID. Once this resource has been created, the returned project will always have a project that contains a project number. Format: 'projects/{project number\}' Example: 'projects/1234'
+     * Immutable. The linked Google Cloud project resource name. Currently, this API always uses a project number, but may use project IDs in the future. Format: 'projects/{project number\}' Example: 'projects/1234'
      */
     project?: string | null;
     /**