[MISC] fix format check error (#654)

This pr makes format.sh works as expect.

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

vllm_ascend/distributed/parallel_state.py

@@ -7,7 +7,7 @@ from vllm.distributed.parallel_state import (GroupCoordinator, get_world_group,
 # vllm-ascend will maintain its own EP GroupCoordinator and ETP GroupCoordinator for
 # customize parallel solution
 _EP: Optional[GroupCoordinator] = None
-_ETP: Optional[list[GroupCoordinator]] = None
+_ETP: Optional[GroupCoordinator] = None
 
 
 def get_ep_group() -> GroupCoordinator:
@@ -69,4 +69,4 @@ def destory_ascend_model_parallel():
     global _ETP
     if _ETP:
         _ETP.destroy()
-    _ETP = None
+    _ETP = None