chore(deps): bump engine.io, @nestjs/platform-socket.io and socket.io

Bumps [engine.io](https://github.com/socketio/engine.io) to 6.4.2 and updates ancestor dependencies [engine.io](https://github.com/socketio/engine.io), [@nestjs/platform-socket.io](https://github.com/nestjs/nest) and [socket.io](https://github.com/socketio/socket.io). These dependencies need to be updated together.


Updates `engine.io` from 6.2.1 to 6.4.2
- [Release notes](https://github.com/socketio/engine.io/releases)
- [Changelog](https://github.com/socketio/engine.io/blob/main/CHANGELOG.md)
- [Commits](socketio/engine.io@6.2.1...6.4.2)

Updates `@nestjs/platform-socket.io` from 9.0.7 to 9.4.0
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](nestjs/nest@v9.0.7...v9.4.0)

Updates `socket.io` from 4.5.1 to 4.6.1
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/main/CHANGELOG.md)
- [Commits](socketio/socket.io@4.5.1...4.6.1)

---
updated-dependencies:
- dependency-name: engine.io
  dependency-type: indirect
- dependency-name: "@nestjs/platform-socket.io"
  dependency-type: direct:production
- dependency-name: socket.io
  dependency-type: direct:production
...

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

backend/package.json

@@ -39,7 +39,7 @@
     "@nestjs/mongoose": "^9.2.1",
     "@nestjs/passport": "^9.0.0",
     "@nestjs/platform-express": "^9.0.0",
-    "@nestjs/platform-socket.io": "^9.0.0",
+    "@nestjs/platform-socket.io": "^9.4.0",
     "@nestjs/schedule": "^2.1.0",
     "@nestjs/swagger": "^6.0.4",
     "@nestjs/websockets": "^9.0.0",
@@ -68,7 +68,7 @@
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
     "rxjs": "^7.5.6",
-    "socket.io": "^4.4.1",
+    "socket.io": "^4.6.1",
     "swagger-ui-express": "^4.5.0"
   },
   "devDependencies": {