Bump stylelint from 16.5.0 to 16.6.0 in the stylelint group

Bumps the stylelint group with 1 update: [stylelint](https://github.com/stylelint/stylelint).

Updates `stylelint` from 16.5.0 to 16.6.0
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.5.0...16.6.0)

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

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

package.json

@@ -54,7 +54,7 @@
     "qunit-tap": "1.5.1",
     "sass": "1.77.1",
     "sizzle": "2.3.10",
-    "stylelint": "16.5.0",
+    "stylelint": "16.6.0",
     "stylelint-config-standard": "36.0.0",
     "stylelint-config-standard-scss": "13.1.0",
     "stylelint-formatter-pretty": "4.0.0",