chore(deps): bump firebase-admin from 13.6.0 to 13.6.1 in /functions

Bumps [firebase-admin](https://github.com/firebase/firebase-admin-node) from 13.6.0 to 13.6.1.
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Changelog](https://github.com/firebase/firebase-admin-node/blob/main/CHANGELOG.md)
- [Commits](firebase/firebase-admin-node@v13.6.0...v13.6.1)

---
updated-dependencies:
- dependency-name: firebase-admin
  dependency-version: 13.6.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

functions/package-lock.json

@@ -11,7 +11,7 @@
 	"main": "lib/index.js",
 	"dependencies": {
 		"@slack/web-api": "^7.13.0",
-		"firebase-admin": "^13.6.0",
+		"firebase-admin": "^13.6.1",
 		"firebase-functions": "^7.0.5",
 		"google-auth-library": "^10.5.0",
 		"remeda": "^2.33.4"