chore(package): update lockfile

https://npm.im/greenkeeper-lockfile

Author: greenkeeperio-bot

yarn.lock

@@ -7236,10 +7236,10 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@^4.26.0:
-  version "4.26.0"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.26.0.tgz#adbe80b869148c8d108b7d88965d00d72b3178de"
-  integrity sha512-J/dP9SJIc5OtX2FZ/+U9ikQtd6H6Mcbqt0xeXtmPwYGDKf8nkbOQQA9KL2Y0rJOsN1Al9Pdn+/j63X58ub8gvQ==
+webpack@^4.27.0:
+  version "4.27.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.27.0.tgz#1db66f03f0239bf797827f0580f53a41abd4067c"
+  integrity sha512-y77EQNIlsB9fUGgpLv/ZzmH+Yd9DgyIF9omX9RFavR5ZFM6HxFm6sqkbBXYxpjbKej9K6hD+Y8qEVg2rWdI2gg==
   dependencies:
     "@webassemblyjs/ast" "1.7.11"
     "@webassemblyjs/helper-module-context" "1.7.11"