Bump css-loader from 6.11.0 to 7.1.1

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.11.0 to 7.1.1.
- [Release notes](https://github.com/webpack-contrib/css-loader/releases)
- [Changelog](https://github.com/webpack-contrib/css-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/css-loader@v6.11.0...v7.1.1)

---
updated-dependencies:
- dependency-name: css-loader
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

demo/package.json

@@ -10,7 +10,7 @@
     "@types/history": "^4.7.3",
     "@types/lodash": "^4.14.140",
     "clean-webpack-plugin": "^4.0.0",
-    "css-loader": "^6.1.0",
+    "css-loader": "^7.1.1",
     "node-sass": "^8.0.0",
     "sass-loader": "^12.0.0",
     "style-loader": "^3.0.0",