chore: bump eslint from 9.20.1 to 9.21.0 (#629)

Bumps [eslint](https://github.com/eslint/eslint) from 9.20.1 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/v9.20.1...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -17,7 +17,7 @@
     "@rollup/plugin-typescript": "^12.1.2",
     "@types/node": "^22.13.4",
     "@vitest/coverage-v8": "^3.0.6",
-    "eslint": "^9.20.1",
+    "eslint": "^9.21.0",
     "prettier": "^3.5.2",
     "rollup": "^4.34.8",
     "tslib": "^2.8.1",