fix(deps): update dependency ws to v8.21.0 [security]

Author: khepri-bot[bot]

mcp/package.json

@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "1.29.0",
-    "ws": "8.20.0",
+    "ws": "8.21.0",
     "zod": "4.3.6"
   },
   "devDependencies": {