build(deps-dev): bump stylelint in the stylelint group

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


Updates `stylelint` from 16.21.0 to 16.21.1
- [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/16.21.0...16.21.1)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-version: 16.21.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: stylelint
...

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

package.json

@@ -41,7 +41,7 @@
     "jed": "1.1.1",
     "qunit": "2.24.1",
     "sass": "1.79.6",
-    "stylelint": "16.21.0",
+    "stylelint": "16.21.1",
     "stylelint-config-recommended-scss": "15.0.1",
     "stylelint-config-standard": "38.0.0",
     "stylelint-config-standard-scss": "15.0.1",