chore(package): update webpack-dev-middleware to version 3.5.0

Closes #329

Author: greenkeeper[bot]

package.json

@@ -87,7 +87,7 @@
     "webdriverio": "^4.10.2",
     "webpack": "4.7.0",
     "webpack-cli": "^2.0.12",
-    "webpack-dev-middleware": "3.1.3"
+    "webpack-dev-middleware": "3.5.0"
   },
   "repository": {},
   "engines": {