chore(deps): update dependency eslint to v9

Author: renovate[bot]

nestjs-auth/package.json

@@ -53,7 +53,7 @@
     "@types/supertest": "^6.0.0",
     "@typescript-eslint/eslint-plugin": "^7.0.0",
     "@typescript-eslint/parser": "^7.0.0",
-    "eslint": "^8.55.0",
+    "eslint": "^9.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.0.0",
     "jest": "^29.5.0",