Bump firebase-admin from 8.13.0 to 12.0.0

Bumps [firebase-admin](https://github.com/firebase/firebase-admin-node) from 8.13.0 to 12.0.0.
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Commits](https://github.com/firebase/firebase-admin-node/compare/v8.13.0...v12.0.0)

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

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

package.json

@@ -30,7 +30,7 @@
     "erlpack": "github:discordapp/erlpack",
     "express": "^4.17.1",
     "firebase": "^10.8.0",
-    "firebase-admin": "^8.13.0",
+    "firebase-admin": "^12.0.0",
     "fs": "0.0.1-security",
     "genius-lyrics-api": "^3.2.0",
     "he": "^1.2.0",