Bump stylelint from 16.1.0 to 15.11.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 16.1.0 to 15.11.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.1.0...15.11.0)

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

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

package.json

@@ -16,7 +16,7 @@
     "mocha": "^10.0.0",
     "nightmare": "^3.0.2",
     "nyc": "^15.1.0",
-    "stylelint": "^16.0.2",
+    "stylelint": "^15.11.0",
     "stylelint-config-standard": "^36.0.0",
     "stylelint-csstree-validator": "^3.0.0",
     "stylelint-scss": "^6.0.0"