Update run_benchmarks.py

Author: codelion

examples/mlx_metal_kernel_opt/run_benchmarks.py

@@ -133,7 +133,7 @@ def run_optimized_benchmark(args, original_dir):
             return None
 
         # Apply the custom attention hook
-        apply_hook, remove_hook = best_program.create_qwen3_optimization_hook()
+        apply_hook, remove_hook = best_program.create_metal_qwen3_optimization_hook()
         print("🔧 Applying optimized attention hook...")
 
         original_attention = apply_hook()