Downgrade @types/express-serve-static-core to v4

Author: Karql

package-lock.json

@@ -31,7 +31,7 @@
     "@types/cors": "^2.8.17",
     "@types/elasticsearch": "^5.0.43",
     "@types/express": "^4.17.21",
-    "@types/express-serve-static-core": "^5.0.0",
+    "@types/express-serve-static-core": "^4.19.5",
     "@types/lodash": "^4.17.13",
     "@types/node": "^22.10.2",
     "@types/randomstring": "^1.3.0",