Bump pandas from 2.3.0 to 2.3.1 in /src (#4162)

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.3.0...v2.3.1)

---
updated-dependencies:
- dependency-name: pandas
  dependency-version: 2.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/requirements.txt

@@ -7,6 +7,6 @@ pytest-cov==6.2.1
 sqlfluff==3.4.1
 
 # sql/util/* dependencies
-pandas==2.3.0
+pandas==2.3.1
 google-cloud-bigquery==3.34.0
 requests==2.32.4