[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

monai/engines/workflow.py

@@ -13,7 +13,8 @@
 
 import warnings
 from collections.abc import Callable, Iterable, Sequence
-from typing import TYPE_CHECKING, Any, Sized
+from typing import TYPE_CHECKING, Any
+from collections.abc import Sized
 
 import torch
 import torch.distributed as dist