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

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Author: pre-commit-ci[bot]

tests/tests_pytorch/trainer/connectors/test_checkpoint_connector.py

@@ -18,7 +18,7 @@
 import pytest
 import torch
 from lightning.pytorch import Trainer
-from lightning.pytorch.callbacks import ModelCheckpoint, Callback
+from lightning.pytorch.callbacks import Callback, ModelCheckpoint
 from lightning.pytorch.demos.boring_classes import BoringModel
 from lightning.pytorch.trainer.states import TrainerFn
 from lightning.pytorch.utilities.migration.utils import _set_version