Build(deps-dev): Bump stylelint from 15.5.0 to 15.6.0 (#38505)

Bumps [stylelint](https://github.com/stylelint/stylelint) from 15.5.0 to 15.6.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/15.5.0...15.6.0)

---
updated-dependencies:
- dependency-name: 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

@@ -148,7 +148,7 @@
     "sass": "^1.62.0",
     "sass-true": "^7.0.0",
     "shelljs": "^0.8.5",
-    "stylelint": "^15.5.0",
+    "stylelint": "^15.6.0",
     "stylelint-config-twbs-bootstrap": "^9.0.1",
     "terser": "5.16.0",
     "vnu-jar": "23.4.11"