chore(deps): bump @google-cloud/firestore, firebase-admin and firebase-functions

Bumps [@google-cloud/firestore](https://github.com/googleapis/nodejs-firestore) to 7.9.0 and updates ancestor dependencies [@google-cloud/firestore](https://github.com/googleapis/nodejs-firestore), [firebase-admin](https://github.com/firebase/firebase-admin-node) and [firebase-functions](https://github.com/firebase/firebase-functions). These dependencies need to be updated together.


Updates `@google-cloud/firestore` from 4.15.1 to 7.9.0
- [Release notes](https://github.com/googleapis/nodejs-firestore/releases)
- [Changelog](https://github.com/googleapis/nodejs-firestore/blob/main/CHANGELOG.md)
- [Commits](https://github.com/googleapis/nodejs-firestore/compare/v4.15.1...v7.9.0)

Updates `firebase-admin` from 10.2.0 to 12.2.0
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Commits](https://github.com/firebase/firebase-admin-node/compare/v10.2.0...v12.2.0)

Updates `firebase-functions` from 3.21.0 to 3.24.1
- [Release notes](https://github.com/firebase/firebase-functions/releases)
- [Changelog](https://github.com/firebase/firebase-functions/blob/master/tsconfig.release.json)
- [Commits](https://github.com/firebase/firebase-functions/compare/v3.21.0...v3.24.1)

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

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

functions/package.json

@@ -13,8 +13,8 @@
   },
   "main": "index.js",
   "dependencies": {
-    "firebase-admin": "^10.0.2",
-    "firebase-functions": "^3.18.0"
+    "firebase-admin": "^12.2.0",
+    "firebase-functions": "^3.24.1"
   },
   "devDependencies": {
     "firebase-functions-test": "^0.2.0"