Bump firebase from 8.6.8 to 9.0.2

Bumps [firebase](https://github.com/firebase/firebase-js-sdk) from 8.6.8 to 9.0.2.
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/master/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/compare/firebase@8.6.8...firebase@9.0.2)

---
updated-dependencies:
- dependency-name: firebase
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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