chore(deps-dev): bump grunt-stylelint from 0.18.0 to 0.19.0 (#69)

Bumps [grunt-stylelint](https://github.com/wikimedia/grunt-stylelint) from 0.18.0 to 0.19.0.
- [Release notes](https://github.com/wikimedia/grunt-stylelint/releases)
- [Changelog](https://github.com/wikimedia/grunt-stylelint/blob/main/History.md)
- [Commits](wikimedia/grunt-stylelint@v0.18.0...v0.19.0)

---
updated-dependencies:
- dependency-name: grunt-stylelint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -28,7 +28,7 @@
 		"grunt-contrib-watch": "^1.1.0",
 		"grunt-eslint": "^24.2.0",
 		"grunt-sass": "^3.1.0",
-		"grunt-stylelint": "^0.18.0",
+		"grunt-stylelint": "^0.19.0",
 		"matchdep": "^2.0.0",
 		"sass": "^1.63.6",
 		"stylelint": "^15.10.2",