feat(all): auto-regenerate discovery clients (#2352)

Author: yoshi-automation

api-list.json

@@ -853,7 +853,22 @@
         "x16": "https://www.gstatic.com/images/branding/product/1x/googleg_16dp.png",
         "x32": "https://www.gstatic.com/images/branding/product/1x/googleg_32dp.png"
       },
-      "documentationLink": "https://cloud.google.com/bigquery/",
+      "documentationLink": "https://cloud.google.com/bigquery/docs/connections-api-intro",
+      "preferred": false
+    },
+    {
+      "kind": "discovery#directoryItem",
+      "id": "bigqueryconnection:v1",
+      "name": "bigqueryconnection",
+      "version": "v1",
+      "title": "BigQuery Connection API",
+      "description": "Allows users to manage BigQuery connections to external data sources.",
+      "discoveryRestUrl": "https://bigqueryconnection.googleapis.com/$discovery/rest?version=v1",
+      "icons": {
+        "x16": "https://www.gstatic.com/images/branding/product/1x/googleg_16dp.png",
+        "x32": "https://www.gstatic.com/images/branding/product/1x/googleg_32dp.png"
+      },
+      "documentationLink": "https://cloud.google.com/bigquery/docs/connections-api-intro",
       "preferred": true
     },
     {