🦉 Updates from OwlBot post-processor

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

Author: gcf-owl-bot[bot]

docs/conf.py

@@ -112,6 +112,7 @@
     "google/cloud/bigquery_v2/**",  # Legacy proto-based types.
     "google/cloud/bigquery_v2/**",  # Legacy proto-based types.
     "google/cloud/bigquery_v2/**",  # Legacy proto-based types.
+    "google/cloud/bigquery_v2/**",  # Legacy proto-based types.
     "_build",
     "**/.nox/**/*",
     "samples/AUTHORING_GUIDE.md",