chore(deps): update dependency webpack-cli to v3.3.10 (#470)

Author: renovate[bot]

package-lock.json

@@ -83,7 +83,7 @@
     "vue-loader": "15.7.1",
     "webpack": "4.41.2",
     "vuepress": "1.2.0",
-    "webpack-cli": "3.3.9",
+    "webpack-cli": "3.3.10",
     "webpack-dev-server": "3.9.0",
     "webpack-merge": "4.2.2"
   },