build(deps): bump @trpc/server from 11.1.0 to 11.1.1

bump to a non-vulnerable version to CVE-2025-43855 (WebSocket DoS Vulnerability)

Author: lorenzocorallo

backend/package.json

@@ -30,7 +30,7 @@
     "@hono/node-server": "^1.14.1",
     "@hono/trpc-server": "^0.3.4",
     "@t3-oss/env-core": "^0.12.0",
-    "@trpc/server": "11.1.0",
+    "@trpc/server": "11.1.1",
     "better-auth": "^1.2.7",
     "croner": "^9.0.0",
     "drizzle-orm": "^0.39.3",