Bump @grpc/grpc-js, @google-cloud/firestore and firebase-admin

Bumps [@grpc/grpc-js](https://github.com/grpc/grpc-node) to 1.10.9 and updates ancestor dependencies [@grpc/grpc-js](https://github.com/grpc/grpc-node), [@google-cloud/firestore](https://github.com/googleapis/nodejs-firestore) and [firebase-admin](https://github.com/firebase/firebase-admin-node). These dependencies need to be updated together.


Updates `@grpc/grpc-js` from 1.2.3 to 1.10.9
- [Release notes](https://github.com/grpc/grpc-node/releases)
- [Commits](https://github.com/grpc/grpc-node/compare/@grpc/[email protected]...@grpc/[email protected])

Updates `@google-cloud/firestore` from 4.8.1 to 7.8.0
- [Release notes](https://github.com/googleapis/nodejs-firestore/releases)
- [Changelog](https://github.com/googleapis/nodejs-firestore/blob/main/CHANGELOG.md)
- [Commits](googleapis/nodejs-firestore@v4.8.1...v7.8.0)

Updates `firebase-admin` from 9.4.1 to 12.1.1
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Commits](firebase/firebase-admin-node@v9.4.1...v12.1.1)

---
updated-dependencies:
- dependency-name: "@grpc/grpc-js"
  dependency-type: indirect
- dependency-name: "@google-cloud/firestore"
  dependency-type: direct:production
- dependency-name: firebase-admin
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>