Bump stylelint from 16.1.0 to 16.2.1 (#313)

* Bump stylelint from 16.1.0 to 16.2.1

Bumps [stylelint](https://github.com/stylelint/stylelint) from 16.1.0 to 16.2.1.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/main/CHANGELOG.md)
- [Commits](stylelint/stylelint@16.1.0...16.2.1)

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

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

* Revert `peerDependencies` change

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>

package.json

@@ -59,7 +59,7 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^3.2.4",
     "remark-cli": "^12.0.0",
-    "stylelint": "^16.1.0"
+    "stylelint": "^16.2.1"
   },
   "peerDependencies": {
     "stylelint": "^16.1.0"