Bump mini-css-extract-plugin from 1.6.2 to 2.8.0

Bumps [mini-css-extract-plugin](https://github.com/webpack-contrib/mini-css-extract-plugin) from 1.6.2 to 2.8.0.
- [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@v1.6.2...v2.8.0)

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

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

package.json

@@ -79,7 +79,7 @@
     "extract-text-webpack-plugin": "~3.0.2",
     "html-webpack-plugin": "~5.5.3",
     "json-loader": "~0.5.4",
-    "mini-css-extract-plugin": "~1.6.0",
+    "mini-css-extract-plugin": "~2.8.0",
     "mocha": "~10.2.0",
     "nib": "~1.2.0",
     "path-browserify": "~1.0.1",