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

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Author: pre-commit-ci[bot]

monai/networks/schedulers/rectified_flow.py

@@ -292,5 +292,5 @@ def step(
 
         pred_post_sample = sample + v_pred * dt
         pred_original_sample = sample + v_pred * timestep/self.num_train_timesteps
-        
+
         return pred_post_sample, pred_original_sample