Bump google-auth from 2.28.1 to 2.31.0 in /{{cookiecutter.project_slug}} (#771)

Bumps [google-auth](https://github.com/googleapis/google-auth-library-python) from 2.28.1 to 2.31.0.
- [Release notes](https://github.com/googleapis/google-auth-library-python/releases)
- [Changelog](https://github.com/googleapis/google-auth-library-python/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-auth-library-python@v2.28.1...v2.31.0)

---
updated-dependencies:
- dependency-name: google-auth
  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>

Author: dependabot[bot]

{{cookiecutter.project_slug}}/Pipfile

@@ -27,7 +27,7 @@ pillow = "~=10.3.0"
 pytest = "==7.4.3"
 factory-boy = "==3.3.0"
 google-cloud-secret-manager = "==2.20.0"
-google-auth = "==2.28.1"
+google-auth = "==2.31.0"
 google-cloud-storage = "==2.9.0"
 pipenv = "*"
 django-import-export = "*"