Bump firebase-admin from 13.3.0 to 13.4.0

Bumps [firebase-admin](https://github.com/firebase/firebase-admin-node) from 13.3.0 to 13.4.0.
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Changelog](https://github.com/firebase/firebase-admin-node/blob/master/CHANGELOG.md)
- [Commits](https://github.com/firebase/firebase-admin-node/compare/v13.3.0...v13.4.0)

---
updated-dependencies:
- dependency-name: firebase-admin
  dependency-version: 13.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -24,7 +24,7 @@
     "discord.js": "^14.19.3",
     "dotenv": "^16.5.0",
     "firebase": "^11.7.1",
-    "firebase-admin": "^13.3.0",
+    "firebase-admin": "^13.4.0",
     "he": "^1.2.0",
     "prism-media": "^1.3.5",
     "request": "^2.88.2",