Chore(deps-dev): Bump @nextcloud/stylelint-config from 2.3.1 to 2.4.0

Bumps [@nextcloud/stylelint-config](https://github.com/nextcloud/stylelint-config) from 2.3.1 to 2.4.0.
- [Release notes](https://github.com/nextcloud/stylelint-config/releases)
- [Changelog](https://github.com/nextcloud-libraries/stylelint-config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nextcloud/stylelint-config/compare/v2.3.1...v2.4.0)

---
updated-dependencies:
- dependency-name: "@nextcloud/stylelint-config"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -77,7 +77,7 @@
     "@nextcloud/browserslist-config": "^3.0.0",
     "@nextcloud/cypress": "^1.0.0-beta.7",
     "@nextcloud/eslint-config": "^8.3.0",
-    "@nextcloud/stylelint-config": "^2.3.1",
+    "@nextcloud/stylelint-config": "^2.4.0",
     "@nextcloud/webpack-vue-config": "^6.0.0",
     "@relative-ci/agent": "^4.2.3",
     "@vue/test-utils": "^1.3.6",