Bump google-auth from 1.21.3 to 1.22.0
Bump google-auth from 1.21.3 to 1.22.0

Bumps [google-auth](https://github.com/googleapis/google-auth-library-python) from 1.21.3 to 1.22.0.
- [Release notes](https://github.com/googleapis/google-auth-library-python/releases)
- [Changelog](https://github.com/googleapis/google-auth-library-python/blob/master/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-auth-library-python/compare/v1.21.3...v1.22.0)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
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