Bump firebase-admin from 6.8.0 to 6.9.0

Bumps [firebase-admin](https://github.com/firebase/firebase-admin-python) from 6.8.0 to 6.9.0.
- [Release notes](https://github.com/firebase/firebase-admin-python/releases)
- [Commits](firebase/firebase-admin-python@v6.8.0...v6.9.0)

---
updated-dependencies:
- dependency-name: firebase-admin
  dependency-version: 6.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements_with_versions.txt

@@ -22,7 +22,7 @@ win10toast==0.9
 Counter==1.0.0
 Flask==3.1.1
 selenium==4.33.0
-firebase-admin==6.8.0
+firebase-admin==6.9.0
 ujson==5.10.0
 requests==2.32.4
 quo==2023.5.1