Merge branch 'renovate/css-loader-6.x' into 'master'

Update dependency css-loader to v6

See merge request ai/website!22

package.json

@@ -5,7 +5,7 @@
     "@popperjs/core": "2.10.2",
     "bootstrap": "5.1.2",
     "corejs-typeahead": "1.3.1",
-    "css-loader": "5.2.7",
+    "css-loader": "6.4.0",
     "extract-loader": "5.1.0",
     "file-loader": "6.2.0",
     "glob": "7.2.0",