Bump webpack-dev-server 3.11.0 -> 3.11.1 (#10312)

Resolves #10084 security vulnerability in websocket-driver library version 0.5.6, imported transitively by sockjs

Author: Awarua-

packages/react-scripts/package.json

@@ -83,7 +83,7 @@
     "ts-pnp": "1.2.0",
     "url-loader": "4.1.1",
     "webpack": "4.44.2",
-    "webpack-dev-server": "3.11.0",
+    "webpack-dev-server": "3.11.1",
     "webpack-manifest-plugin": "2.2.0",
     "workbox-webpack-plugin": "5.1.4"
   },