chore(nodejs): update client ref docs link in metadata (#532)

* chore(nodejs): update client ref docs link in metadata

* 🦉 Updates from OwlBot

See https://github.com/googleapis/repo-automation-bots/blob/master/packages/owl-bot/README.md

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-cloud-automl/.repo-metadata.json

@@ -7,7 +7,7 @@
   "language": "nodejs",
   "requires_billing": true,
   "issue_tracker": "https://issuetracker.google.com/savedsearches/559744",
-  "client_documentation": "https://googleapis.dev/nodejs/automl/latest",
+  "client_documentation": "https://cloud.google.com/nodejs/docs/reference/automl/latest",
   "name": "automl",
   "name_pretty": "Cloud AutoML",
   "api_id": "automl.googleapis.com",

packages/google-cloud-automl/README.md

@@ -210,7 +210,7 @@ Apache Version 2.0
 
 See [LICENSE](https://github.com/googleapis/nodejs-automl/blob/master/LICENSE)
 
-[client-docs]: https://googleapis.dev/nodejs/automl/latest
+[client-docs]: https://cloud.google.com/nodejs/docs/reference/automl/latest
 [product-docs]: https://cloud.google.com/automl/docs/
 [shell_img]: https://gstatic.com/cloudssh/images/open-btn.png
 [projects]: https://console.cloud.google.com/project