fix ut

Signed-off-by: Icey <1790571317@qq.com>

Author: wxsIcey

tests/ut/model_loader/netloader/test_netloader.py

@@ -24,6 +24,7 @@
 from vllm_ascend.model_loader.netloader.netloader import ModelNetLoaderElastic
 from vllm_ascend.utils import vllm_version_is
 
+
 class DummyDeviceConfig:
     device = 'cuda'
     device_type = 'cuda'
@@ -176,7 +177,8 @@ def __exit__(self, a, b, c):
     if vllm_version_is("0.11.0"):
         monkeypatch.setattr("vllm.utils.get_ip", lambda: "127.0.0.1")
     else:
-        monkeypatch.setattr("vllm.utils.network_utils.get_ip", lambda: "127.0.0.1")
+        monkeypatch.setattr("vllm.utils.network_utils.get_ip",
+                            lambda: "127.0.0.1")
     # patch find_free_port
     monkeypatch.setattr(
         "vllm_ascend.model_loader.netloader.netloader.find_free_port",