Bump jsonwebtoken, firebase-admin and firebase-functions

Bumps [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken) to 9.0.0 and updates ancestor dependencies [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken), [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 `jsonwebtoken` from 8.1.0 to 9.0.0
- [Release notes](https://github.com/auth0/node-jsonwebtoken/releases)
- [Changelog](https://github.com/auth0/node-jsonwebtoken/blob/master/CHANGELOG.md)
- [Commits](https://github.com/auth0/node-jsonwebtoken/compare/v8.1.0...v9.0.0)

Updates `firebase-admin` from 8.4.0 to 11.4.1
- [Release notes](https://github.com/firebase/firebase-admin-node/releases)
- [Commits](https://github.com/firebase/firebase-admin-node/compare/v8.4.0...v11.4.1)

Updates `firebase-functions` from 3.2.0 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/v3.2.0...v3.24.1)

---
updated-dependencies:
- dependency-name: jsonwebtoken
  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>

firebase/functions/package.json

@@ -13,8 +13,8 @@
     "node": "8"
   },
   "dependencies": {
-    "firebase-admin": "^8.4.0",
-    "firebase-functions": "^3.2.0"
+    "firebase-admin": "^11.4.1",
+    "firebase-functions": "^3.24.1"
   },
   "devDependencies": {
     "eslint": "^4.13.1",