Bump socket.io from 4.7.5 to 4.8.1 in /cloud

Bumps [socket.io](https://github.com/socketio/socket.io) from 4.7.5 to 4.8.1.
- [Release notes](https://github.com/socketio/socket.io/releases)
- [Changelog](https://github.com/socketio/socket.io/blob/main/CHANGELOG.md)
- [Commits](https://github.com/socketio/socket.io/compare/socket.io@4.7.5...socket.io@4.8.1)

---
updated-dependencies:
- dependency-name: socket.io
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

cloud/package.json

@@ -43,7 +43,7 @@
     "ioredis": "5.4.1",
     "pino": "9.5.0",
     "redis": "4.7.0",
-    "socket.io": "4.7.5"
+    "socket.io": "4.8.1"
   },
   "devDependencies": {
     "nodemon": "3.1.7",