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

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

monai/networks/schedulers/rectified_flow.py

@@ -28,7 +28,7 @@
 
 from __future__ import annotations
 
-from typing import Any, Union
+from typing import Union
 
 import numpy as np
 import torch