Bump stylelint from 14.9.1 to 16.9.0

Bumps [stylelint](https://github.com/stylelint/stylelint) from 14.9.1 to 16.9.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@14.9.1...16.9.0)

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

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

package.json

@@ -42,7 +42,7 @@
     "eslint-plugin-import": "^2.27.5",
     "jsdoc": "^4.0.2",
     "markdownlint": "^0.29.0",
-    "stylelint": "14.9.1",
+    "stylelint": "16.9.0",
     "stylelint-config-standard": "28.0.0"
   },
   "npmName": "countly-sdk-web",