build(deps): bump jsonwebtoken from 8.5.1 to 9.0.0 in /backend-nodejs

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]

backend-nodejs/package-lock.json

@@ -37,7 +37,7 @@
     "express": "^4.16.4",
     "express-boom": "^3.0.0",
     "helmet": "^3.16.0",
-    "jsonwebtoken": "^8.5.1",
+    "jsonwebtoken": "^9.0.0",
     "moment": "^2.24.0",
     "multer": "^1.4.1",
     "mysql2": "^1.6.5",