Merge pull request #425 from textpattern/greenkeeper/webpack-4.42.0

Update webpack to the latest version 🚀

Author: philwareham

package.json

@@ -29,7 +29,7 @@
     "stylelint-order": "4.0.0",
     "stylelint-scss": "3.14.1",
     "stylelint-webpack-plugin": "1.2.3",
-    "webpack": "4.41.6",
+    "webpack": "4.42.0",
     "webpack-cli": "3.3.10"
   },
   "optionalDependencies": {