Update dependency socket.io to v4

Author: renovate-bot

package-lock.json

@@ -32,7 +32,7 @@
     "express": "^4.17.1",
     "node-statsd": "^0.1.1",
     "pino-http": "^5.5.0",
-    "socket.io": "^3.1.2",
+    "socket.io": "^4.0.0",
     "socket.io-redis": "^6.0.1"
   },
   "devDependencies": {