chore(deps-dev): bump stylelint from 9.10.1 to 15.10.1

Bumps [stylelint](https://github.com/stylelint/stylelint) from 9.10.1 to 15.10.1.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@9.10.1...15.10.1)

---
updated-dependencies:
- dependency-name: stylelint
  dependency-type: direct:development
...

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

package.json

@@ -146,7 +146,7 @@
     "react-dom": "^16.9.0",
     "react-scripts": "^3.4.1",
     "storybook-readme": "^5.0.2",
-    "stylelint": "^9.10.1",
+    "stylelint": "^15.10.1",
     "stylelint-config-standard": "^18.2.0",
     "ts-loader": "^7.0.2",
     "typescript": "^3.9.3"