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:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -30,7 +30,7 @@
     "@xmldom/xmldom": "^0.8.2"
   },
   "devDependencies": {
-    "eslint": "^8.20.0",
+    "eslint": "^8.21.0",
     "jest": "^28.1.3"
   }
 }