Bump eslint from 9.19.0 to 9.21.0

Bumps [eslint](https://github.com/eslint/eslint) from 9.19.0 to 9.21.0.
- [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/v9.19.0...v9.21.0)

---
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

@@ -21,7 +21,7 @@
   ],
   "devDependencies": {
     "@eslint/js": "9.20.0",
-    "eslint": "9.19.0",
+    "eslint": "9.21.0",
     "eslint-config-prettier": "10.0.1",
     "eslint-plugin-prettier": "5.2.3",
     "globals": "15.14.0",