chore(deps): update dependency @eslint-types/typescript-eslint to ^6.21.0

Author: renovate[bot]

package.json

@@ -79,7 +79,7 @@
     "@antfu/eslint-define-config": "1.23.0-2",
     "@antfu/install-pkg": "^0.3.1",
     "@eslint-types/jsdoc": "48.0.6",
-    "@eslint-types/typescript-eslint": "^6.19.1",
+    "@eslint-types/typescript-eslint": "^6.21.0",
     "@eslint-types/unicorn": "^50.0.1",
     "@toml-tools/parser": "^1.0.0",
     "@typescript-eslint/eslint-plugin": "^6.21.0",