Update dependency webpack-dev-server to v3.11.0

Author: renovate-bot

package.json

@@ -99,7 +99,7 @@
     "style-loader": "1.2.1",
     "webpack": "4.43.0",
     "webpack-cli": "3.3.11",
-    "webpack-dev-server": "3.10.3"
+    "webpack-dev-server": "3.11.0"
   },
   "peerDependencies": {
     "react": ">15",