npm: bump css-loader from 6.11.0 to 7.0.0

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.11.0 to 7.0.0.
- [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...v7.0.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -31,7 +31,7 @@
     "@types/react-dom": "^18.2.23",
     "@types/webpack": "^5.28.5",
     "babel-loader": "^9.1.3",
-    "css-loader": "^6.11.0",
+    "css-loader": "^7.0.0",
     "eslint": "^8.57.0",
     "koa": "^2.15.2",
     "koa-bodyparser": "^4.4.1",