add pytest flag

Signed-off-by: jiant <[email protected]>

Author: JadoTu

tests/integration/defs/accuracy/test_llm_api_pytorch.py

@@ -4181,6 +4181,7 @@ def test_bf16_4gpu(self, tp_size, pp_size, ep_size, cuda_graph,
             task.evaluate(llm)
 
     @skip_pre_blackwell
+    @pytest.mark.skip_less_device(4)
     @pytest.mark.parametrize("moe_backend", ["CUTLASS", "TRTLLM"],
                              ids=["cutlass", "trtllm"])
     @pytest.mark.parametrize(