Bump eslint from 8.20.0 to 8.21.0

Bumps [eslint](https://github.com/eslint/eslint) from 8.20.0 to 8.21.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v8.20.0...v8.21.0)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "csso-cli": "^4.0.1",
-    "eslint": "^8.20.0",
+    "eslint": "^8.21.0",
     "html-minifier": "^4.0.0",
     "stylelint": "^14.9.1",
     "stylelint-config-standard": "^26.0.0",