chore: update express version in package.json to match package-lock.json

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

server/package.json

@@ -30,7 +30,7 @@
     "@modelcontextprotocol/sdk": "^1.0.3",
     "cors": "^2.8.5",
     "eventsource": "^2.0.2",
-    "express": "^4.21.0",
+    "express": "^4.21.2",
     "ws": "^8.18.0",
     "zod": "^3.23.8"
   }