Merge pull request #592 from textpattern/dependabot/npm_and_yarn/css-loader-4.0.0

Bump css-loader from 3.6.0 to 4.0.0

Author: philwareham

package.json

@@ -29,7 +29,7 @@
     "clean-webpack-plugin": "3.0.0",
     "copy-webpack-plugin": "6.0.3",
     "cross-env": "7.0.2",
-    "css-loader": "3.6.0",
+    "css-loader": "4.0.0",
     "file-loader": "6.0.0",
     "mini-css-extract-plugin": "0.9.0",
     "postcss-loader": "3.0.0",