Bump google-auth-httplib2 from 0.4.0 to 0.4.2

Bumps [google-auth-httplib2](https://github.com/googleapis/google-cloud-python) from 0.4.0 to 0.4.2.
- [Release notes](https://github.com/googleapis/google-cloud-python/releases)
- [Changelog](https://github.com/googleapis/google-cloud-python/blob/main/CHANGELOG.md)
- [Commits](googleapis/google-cloud-python@google-auth-httplib2-v0.4.0...google-auth-httplib2-v0.4.2)

---
updated-dependencies:
- dependency-name: google-auth-httplib2
  dependency-version: 0.4.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 google-auth-oauthlib==1.4.0
-google-auth-httplib2==0.4.0
+google-auth-httplib2==0.4.2
 google-api-python-client>=2.198.0,<3.0.0
 google-cloud-bigquery>=3.42.2,<4.0.0
 python-dateutil==2.9.0.post0