chore(package): update webpack to version 4.29.3

Author: greenkeeper[bot]

package.json

@@ -40,7 +40,7 @@
     "stylelint-order": "2.0.0",
     "stylelint-scss": "3.5.3",
     "stylelint-webpack-plugin": "0.10.5",
-    "webpack": "4.29.2",
+    "webpack": "4.29.3",
     "webpack-cli": "3.2.3"
   },
   "browserslist": [