chore(deps): update dependency webpack to v4.12.1

Author: renovate-bot

package.json

@@ -53,7 +53,7 @@
     "typedoc": "0.11.1",
     "typescript": "2.9.2",
     "uuid": "3.2.1",
-    "webpack": "4.12.0",
+    "webpack": "4.12.1",
     "webpack-cli": "3.0.8"
   },
   "scripts": {