Bump css-loader from 6.7.1 to 6.8.1

Bumps [css-loader](https://github.com/webpack-contrib/css-loader) from 6.7.1 to 6.8.1.
- [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@v6.7.1...v6.8.1)

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

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

package.json

@@ -37,7 +37,7 @@
     "autoprefixer": "^10.4.14",
     "babel-jest": "^27.5.1",
     "babel-loader": "^8.2.5",
-    "css-loader": "^6.7.1",
+    "css-loader": "^6.8.1",
     "emoji-datasource": "15.0.1",
     "emojilib": "^3.0.10",
     "inflection": "1.13.4",