Bump mini-css-extract-plugin from 2.9.3 to 2.9.4

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 2.9.3 to 2.9.4.
- [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/mini-css-extract-plugin@v2.9.3...v2.9.4)

---
updated-dependencies:
- dependency-name: mini-css-extract-plugin
  dependency-version: 2.9.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -47,7 +47,7 @@
     "file-loader": "^6.2.0",
     "html-webpack-plugin": "^5.6.3",
     "jest": "^30.0.0",
-    "mini-css-extract-plugin": "^2.9.3",
+    "mini-css-extract-plugin": "^2.9.4",
     "style-loader": "^4.0.0",
     "terser-webpack-plugin": "^5.3.14",
     "typescript": "^4.9.5",