Merge pull request #237 from xwp/renovate/null-loader-4.x

Update dependency null-loader to v4.0.1

Author: derekherman

package-lock.json

@@ -77,7 +77,7 @@
     "mini-css-extract-plugin": "1.0.0",
     "minimist": "1.2.5",
     "npm-run-all": "4.1.5",
-    "null-loader": "4.0.0",
+    "null-loader": "4.0.1",
     "optimize-css-assets-webpack-plugin": "5.0.4",
     "postcss": "8.1.1",
     "postcss-color-function": "4.1.0",