chore(deps): update devdependency eslint to v9

Author: renovate[bot]

package.json

@@ -77,7 +77,7 @@
     "@vitest/ui": "^1.6.1",
     "bumpp": "^9.11.1",
     "dedent": "^1.5.3",
-    "eslint": "^8.57.1",
+    "eslint": "^9.21.0",
     "fix-tsup-cjs": "^1.2.0",
     "lint-staged": "^15.4.3",
     "prettier": "^3.5.1",