Bump jsonwebtoken from 9.0.0 to 9.0.2 in /backend

Bumps [jsonwebtoken](https://github.com/auth0/node-jsonwebtoken) from 9.0.0 to 9.0.2.
- [Changelog](https://github.com/auth0/node-jsonwebtoken/blob/master/CHANGELOG.md)
- [Commits](https://github.com/auth0/node-jsonwebtoken/compare/v9.0.0...v9.0.2)

---
updated-dependencies:
- dependency-name: jsonwebtoken
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

backend/package.json

@@ -39,7 +39,7 @@
     "fluent-ffmpeg": "^2.1.2",
     "fs-extra": "^9.0.0",
     "gotify": "^1.1.0",
-    "jsonwebtoken": "^9.0.0",
+    "jsonwebtoken": "^9.0.2",
     "lodash": "^4.17.21",
     "lowdb": "^1.0.0",
     "md5": "^2.2.1",