upgrade webpack

Author: kazupon

package.json

@@ -56,7 +56,7 @@
     "typescript-eslint-language-service": "^2.0.3",
     "vue-loader": "^15.7.0",
     "vue-template-compiler": "^2.6.11",
-    "webpack": "^4.41.5",
+    "webpack": "^4.42.1",
     "webpack-merge": "^4.2.2"
   },
   "engines": {

yarn.lock

@@ -7185,7 +7185,7 @@ webpack-sources@^1.4.0, webpack-sources@^1.4.1:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^4.41.5:
+webpack@^4.42.1:
   version "4.42.1"
   resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.42.1.tgz#ae707baf091f5ca3ef9c38b884287cfe8f1983ef"
   integrity sha512-SGfYMigqEfdGchGhFFJ9KyRpQKnipvEvjc1TwrXEPCM6H5Wywu10ka8o3KGrMzSMxMQKt8aCHUFh5DaQ9UmyRg==