chore(deps): update dependency css-loader to v3.6.0 (#635)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -53,7 +53,7 @@
     "copy-webpack-plugin": "5.1.1",
     "core-js": "3.6.5",
     "cross-env": "7.0.2",
-    "css-loader": "3.5.3",
+    "css-loader": "3.6.0",
     "eslint": "7.2.0",
     "eslint-config-standard": "14.1.1",
     "eslint-plugin-html": "6.0.2",