Update dependency undici to v6

Author: renovate[bot]

package.json

@@ -14,7 +14,7 @@
     "socket.io-client": "^2.4.0",
     "ts-node": "^10.9.2",
     "typescript": "5.4",
-    "undici": "^5.28.3"
+    "undici": "^6.7.1"
   },
   "devDependencies": {
     "@faker-js/faker": "^8.4.1",