[E2E] Optimize the E2E test time. (#5294)

### What this PR does / why we need it?
Add cudagraph_capture_sizes for E2E CI test.

- vLLM version: release/v0.13.0
- vLLM main:
ad32e3e19c

Signed-off-by: menogrey <1299267905@qq.com>

tests/e2e/multicard/test_qwen3_moe.py

@@ -43,6 +43,7 @@ def test_qwen3_moe_distributed_mp_tp2_ep():
             "Qwen/Qwen3-30B-A3B",
             tensor_parallel_size=2,
             enable_expert_parallel=True,
+            cudagraph_capture_sizes=[1, 2, 4, 8],
             distributed_executor_backend="mp",
     ) as vllm_model:
         vllm_model.generate_greedy(example_prompts, max_tokens)
@@ -57,6 +58,7 @@ def test_qwen3_moe_w8a8_distributed_tp2():
             snapshot_download("vllm-ascend/Qwen3-30B-A3B-W8A8"),
             max_model_len=8192,
             tensor_parallel_size=2,
+            cudagraph_capture_sizes=[1, 2, 4, 8],
             quantization="ascend",
     ) as vllm_model:
         vllm_model.generate_greedy(example_prompts, max_tokens)
@@ -73,6 +75,7 @@ def test_qwen3_moe_distributed_aiv_tp2():
             "Qwen/Qwen3-30B-A3B",
             dtype=dtype,
             tensor_parallel_size=2,
+            cudagraph_capture_sizes=[1, 2, 4, 8],
     ) as vllm_model:
         vllm_model.generate_greedy(example_prompts, max_tokens)