Bump css-loader from 6.7.3 to 6.9.1

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.7.3 to 6.9.1.
- [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@v6.7.3...v6.9.1)

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

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

package.json

@@ -46,7 +46,7 @@
         "browserslist": "^4.21.5",
         "camelcase": "^6.2.1",
         "case-sensitive-paths-webpack-plugin": "^2.4.0",
-        "css-loader": "^6.7.3",
+        "css-loader": "^6.9.1",
         "css-minimizer-webpack-plugin": "^5.0.0",
         "dotenv": "^16.0.2",
         "dotenv-expand": "^5.1.0",