chore(deps-dev): bump stylelint from 15.11.0 to 16.2.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 15.11.0 to 16.2.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@15.11.0...16.2.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -46,7 +46,7 @@
     "lit-analyzer": "^2",
     "messageformat-validator": "^2.4.1",
     "sinon": "^17",
-    "stylelint": "^15"
+    "stylelint": "^16"
   },
   "dependencies": {
     "@brightspace-ui/core": "^2",