Bump google-cloud-bigquery from 1.50.0 to 1.51.0

Bumps [google-cloud-bigquery](https://github.com/googleapis/google-cloud-ruby) from 1.50.0 to 1.51.0.
- [Release notes](https://github.com/googleapis/google-cloud-ruby/releases)
- [Changelog](https://github.com/googleapis/google-cloud-ruby/blob/main/google-cloud-document_ai-v1beta3/CHANGELOG.md)
- [Commits](googleapis/google-cloud-ruby@google-cloud-bigquery/v1.50.0...google-cloud-bigquery/v1.51.0)

---
updated-dependencies:
- dependency-name: google-cloud-bigquery
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -296,7 +296,7 @@ GEM
       mutex_m
       representable (~> 3.0)
       retriable (>= 2.0, < 4.a)
-    google-cloud-bigquery (1.50.0)
+    google-cloud-bigquery (1.51.0)
       bigdecimal (~> 3.0)
       concurrent-ruby (~> 1.0)
       google-apis-bigquery_v2 (~> 0.71)