[FIX] Fix concatenation error in capture_bs when open --disable-cuda-graph-padding and without MTP (sgl-project#5412)

Author: Muuuchen

python/sglang/srt/model_executor/cuda_graph_runner.py

@@ -117,7 +117,7 @@ def get_batch_sizes_to_capture(model_runner: ModelRunner):
     if capture_bs is None:
         if server_args.speculative_algorithm is None:
             if server_args.disable_cuda_graph_padding:
-                capture_bs = list(range(1, 33)) + range(40, 161, 16)
+                capture_bs = list(range(1, 33)) + list(range(40, 161, 16))
             else:
                 capture_bs = [1, 2, 4, 8] + list(range(16, 161, 8))
         else: