Bump firebase-functions from 7.1.0 to 7.2.2 (#593)

Bumps [firebase-functions](https://github.com/firebase/firebase-functions) from 7.1.0 to 7.2.2.
- [Release notes](https://github.com/firebase/firebase-functions/releases)
- [Commits](firebase/firebase-functions@v7.1.0...v7.2.2)

---
updated-dependencies:
- dependency-name: firebase-functions
  dependency-version: 7.2.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

functions/package.json

@@ -15,7 +15,7 @@
   "main": "lib/index.js",
   "dependencies": {
     "firebase-admin": "13.7.0",
-    "firebase-functions": "7.1.0"
+    "firebase-functions": "7.2.2"
   },
   "devDependencies": {
     "@tsconfig/node22": "22.0.5"