build(deps-dev): bump @firebase/auth-types from 0.12.0 to 0.12.1

Bumps [@firebase/auth-types](https://github.com/firebase/firebase-js-sdk/tree/HEAD/packages/auth-types) from 0.12.0 to 0.12.1.
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/master/packages/auth-types/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/commits/@firebase/auth-types@0.12.1/packages/auth-types)

---
updated-dependencies:
- dependency-name: "@firebase/auth-types"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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