Bump protobufjs, @google-cloud/firestore, firebase, firebase-admin and firebase-tools

Bumps [protobufjs](https://github.com/protobufjs/protobuf.js) to 7.6.0 and updates ancestor dependencies [protobufjs](https://github.com/protobufjs/protobuf.js), [@google-cloud/firestore](https://github.com/googleapis/google-cloud-node/tree/HEAD/handwritten/firestore), [firebase](https://github.com/firebase/firebase-js-sdk), [firebase-admin](https://github.com/firebase/firebase-admin-node) and [firebase-tools](https://github.com/firebase/firebase-tools). These dependencies need to be updated together.


Updates `protobufjs` from 6.11.3 to 7.6.0
- [Release notes](https://github.com/protobufjs/protobuf.js/releases)
- [Changelog](https://github.com/protobufjs/protobuf.js/blob/protobufjs-v7.6.0/CHANGELOG.md)
- [Commits](protobufjs/protobuf.js@v6.11.3...protobufjs-v7.6.0)

Updates `@google-cloud/firestore` from 6.4.3 to 7.11.6
- [Release notes](https://github.com/googleapis/google-cloud-node/releases)
- [Changelog](https://github.com/googleapis/google-cloud-node/blob/main/handwritten/firestore/CHANGELOG.md)
- [Commits](https://github.com/googleapis/google-cloud-node/commits/HEAD/handwritten/firestore)

Updates `firebase` from 9.17.1 to 12.13.0
- [Release notes](https://github.com/firebase/firebase-js-sdk/releases)
- [Changelog](https://github.com/firebase/firebase-js-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-js-sdk/compare/firebase@9.17.1...firebase@12.13.0)

Updates `firebase-admin` from 11.5.0 to 13.10.0
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Changelog](https://github.com/firebase/firebase-admin-node/blob/main/CHANGELOG.md)
- [Commits](firebase/firebase-admin-node@v11.5.0...v13.10.0)

Updates `firebase-tools` from 11.24.0 to 15.18.0
- [Release notes](https://github.com/firebase/firebase-tools/releases)
- [Commits](firebase/firebase-tools@v11.24.0...v15.18.0)

---
updated-dependencies:
- dependency-name: protobufjs
  dependency-version: 7.6.0
  dependency-type: indirect
- dependency-name: "@google-cloud/firestore"
  dependency-version: 7.11.6
  dependency-type: direct:production
- dependency-name: firebase
  dependency-version: 12.13.0
  dependency-type: direct:production
- dependency-name: firebase-admin
  dependency-version: 13.10.0
  dependency-type: direct:production
- dependency-name: firebase-tools
  dependency-version: 15.18.0
  dependency-type: direct:development
...

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Author: dependabot[bot]