Fix some ci issue and refactor modelrunner (#2445)

### What this PR does / why we need it?
Fix some ci issue and refactor modelrunner

### Does this PR introduce _any_ user-facing change?
N/A

### How was this patch tested?
CI passed with existing test.

- vLLM version: v0.10.0
- vLLM main:
4d9c61993a

---------

Signed-off-by: wangli <wangli858794774@gmail.com>
Signed-off-by: MengqingCao <cmq0113@163.com>
Signed-off-by: weiguihua2 <weiguihua2@huawei.com>
Co-authored-by: wangli <wangli858794774@gmail.com>
Co-authored-by: weiguihua2 <weiguihua2@huawei.com>

tests/ut/test_platform.py

@@ -536,10 +536,10 @@ class TestNPUPlatform(TestBase):
         mock_config = MagicMock(spec=ModelConfig)
         self.assertTrue(self.platform.supports_v1(mock_config))
 
-    def test_get_piecewise_backend_cls_returns_correct_value(self):
+    def test_get_static_graph_wrapper_cls_returns_correct_value(self):
         self.assertEqual(
-            self.platform.get_piecewise_backend_cls(),
-            "vllm_ascend.compilation.piecewise_backend.NPUPiecewiseBackend",
+            self.platform.get_static_graph_wrapper_cls(),
+            "vllm_ascend.compilation.acl_graph.ACLGraphWrapper",
         )
 
     @patch("torch.distributed.is_hccl_available", return_value=True)