Bump google-cloud-bigquery from 3.37.0 to 3.38.0 in /src (#4231)

Bumps [google-cloud-bigquery](https://github.com/googleapis/python-bigquery) from 3.37.0 to 3.38.0.
- [Release notes](https://github.com/googleapis/python-bigquery/releases)
- [Changelog](https://github.com/googleapis/python-bigquery/blob/main/CHANGELOG.md)
- [Commits](googleapis/python-bigquery@v3.37.0...v3.38.0)

---
updated-dependencies:
- dependency-name: google-cloud-bigquery
  dependency-version: 3.38.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Max Ostapenko <1611259+max-ostapenko@users.noreply.github.com>

Author: dependabot[bot]

src/requirements.txt

@@ -8,5 +8,5 @@ sqlfluff==3.4.2
 
 # sql/util/* dependencies
 pandas==2.3.2
-google-cloud-bigquery==3.37.0
+google-cloud-bigquery==3.38.0
 requests==2.32.5