fix: docs-test (#2297)

* fix: docs-test

* fix: docs-test

* 🦉 Updates from OwlBot post-processor

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

* refactor package.json

* add config file

* update linkinator config

* 🦉 Updates from OwlBot post-processor

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

* 🦉 Updates from OwlBot post-processor

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

* revert change in concurrency

* use github token to increase number of requests

* 🦉 Updates from OwlBot post-processor

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

* 🦉 Updates from OwlBot post-processor

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

* downgrade linkinator version

* refactor concurrency

* skip samples in linkinator

* refactor

---------

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

Author: alkatrivedi

linkinator.config.json

@@ -5,7 +5,8 @@
     "www.googleapis.com",
     "img.shields.io",
     "https://console.cloud.google.com/cloudshell",
-    "https://support.google.com"
+    "https://support.google.com",
+    "^https://github\\.com/googleapis/nodejs-spanner/blob/[^/]+/samples/.*"
   ],
   "silent": true,
   "concurrency": 5,