chore(package): update webpack-cli to version 3.2.2

Closes #159

Author: greenkeeper[bot]

package.json

@@ -22,7 +22,7 @@
     "devDependencies": {
         "copy-webpack-plugin": "4.5.3",
         "webpack": "4.28.4",
-        "webpack-cli": "3.1.2",
+        "webpack-cli": "3.2.2",
         "webpack-dev-server": "3.1.10"
     }
 }