⬆️ Update dependency eslint to v9

Author: renovate[bot]

admin-frontend/package.json

@@ -56,7 +56,7 @@
     "@testing-library/jest-dom": "^6.5.0",
     "@typescript-eslint/eslint-plugin": "^8.6.0",
     "@typescript-eslint/parser": "^8.6.0",
-    "eslint": "^8.57.1",
+    "eslint": "^9.20.1",
     "eslint-config-airbnb": "^19.0.4",
     "eslint-config-airbnb-typescript": "^18.0.0",
     "eslint-import-resolver-typescript": "^3.6.3",