Update dependency webpack-cli to v3.2.3

Author: renovate-bot

package-lock.json

@@ -64,7 +64,7 @@
     "sass-loader": "7.1.0",
     "style-loader": "0.23.1",
     "webpack": "4.29.1",
-    "webpack-cli": "3.2.1",
+    "webpack-cli": "3.2.3",
     "webpack-dev-server": "3.1.14"
   }
 }