Update benchmarks/package.json

Co-authored-by: hanabi1224 <harlowmoo@gmail.com>

Author: LesnyRumcajs

benchmarks/package.json

@@ -16,5 +16,6 @@
     "eslint": "^9.22.0",
     "globals": "^16.0.0",
     "prettier": "^3.5.3"
-  }
+  },
+  "packageManager": "yarn@4.7.0"
 }