fix(package): update update-notifier to version 3.0.0

Closes #230

Author: greenkeeper[bot]

package.json

@@ -79,7 +79,7 @@
     "raw-loader": "2.0.0",
     "replace-in-file": "3.4.3",
     "script-ext-html-webpack-plugin": "2.1.3",
-    "update-notifier": "2.5.0",
+    "update-notifier": "3.0.0",
     "validate-npm-package-name": "3.0.0",
     "webpack": "4.30.0",
     "webpack-dev-server": "3.2.1",