Bump jsonwebtoken from 8.5.1 to 9.0.0 in /server

Bumps [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken) from 8.5.1 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](auth0/node-jsonwebtoken@v8.5.1...v9.0.0)

---
updated-dependencies:
- dependency-name: jsonwebtoken
  dependency-type: direct:production
...

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

Author: dependabot[bot]

server/package-lock.json

@@ -28,7 +28,7 @@
     "dotenv": "8.0.0",
     "express": "4.17.3",
     "forever": "2.0.0",
-    "jsonwebtoken": "8.5.1",
+    "jsonwebtoken": "9.0.0",
     "mongoose": "5.8.7",
     "mongoose-unique-validator": "2.0.3",
     "per-env": "1.0.2"