Bump firebase-tools from 9.12.1 to 13.6.0 in /dashboard

Bumps [firebase-tools](https://github.com/firebase/firebase-tools) from 9.12.1 to 13.6.0.
- [Release notes](https://github.com/firebase/firebase-tools/releases)
- [Changelog](https://github.com/firebase/firebase-tools/blob/master/CHANGELOG.md)
- [Commits](firebase/firebase-tools@v9.12.1...v13.6.0)

---
updated-dependencies:
- dependency-name: firebase-tools
  dependency-type: direct:development
...

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