build(deps): bump firebase-tools from 12.4.6 to 13.13.0 in /functions

Bumps [firebase-tools](https://github.com/firebase/firebase-tools) from 12.4.6 to 13.13.0.
- [Release notes](https://github.com/firebase/firebase-tools/releases)
- [Commits](firebase/firebase-tools@v12.4.6...v13.13.0)

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

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