chore: bump stylelint from 16.18.0 to 16.19.1

Bumps [stylelint](https://github.com/stylelint/stylelint) from 16.18.0 to 16.19.1.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.18.0...16.19.1)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-version: 16.19.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "nyc": "^17.1.0",
     "sinon": "^20.0.0",
     "sinon-chrome": "^3.0.1",
-    "stylelint": "^16.16.0",
+    "stylelint": "^16.19.1",
     "stylelint-config-standard": "^38.0.0",
     "stylelint-no-unsupported-browser-features": "^8.0.4",
     "web-ext": "^8.5.0"