Bump mini-css-extract-plugin from 2.9.0 to 2.9.1

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 2.9.0 to 2.9.1.
- [Release notes](https://github.com/webpack-contrib/mini-css-extract-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/mini-css-extract-plugin/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/mini-css-extract-plugin@v2.9.0...v2.9.1)

---
updated-dependencies:
- dependency-name: mini-css-extract-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -39,7 +39,7 @@
     "copy-webpack-plugin": "^12.0.2",
     "css-loader": "^7.1.2",
     "css-minimizer-webpack-plugin": "^7.0.0",
-    "mini-css-extract-plugin": "^2.9.0",
+    "mini-css-extract-plugin": "^2.9.1",
     "postcss-scss": "^4.0.9",
     "sass": "^1.77.6",
     "sass-loader": "^14.2.1",