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

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tests/callbacks/test_stochastic_weight_avg.py

@@ -24,7 +24,7 @@
 
 from pytorch_lightning import LightningModule, Trainer
 from pytorch_lightning.accelerators import Accelerator
-from pytorch_lightning.callbacks import StochasticWeightAveraging, ModelCheckpoint
+from pytorch_lightning.callbacks import ModelCheckpoint, StochasticWeightAveraging
 from pytorch_lightning.plugins import DDPSpawnPlugin
 from pytorch_lightning.trainer.connectors.data_connector import _PatchDataLoader
 from pytorch_lightning.utilities.exceptions import MisconfigurationException
@@ -380,7 +380,7 @@ def test_swa_load_best_checkpoint(tmpdir, batchnorm: bool, within_swa_epochs: bo
     max_epochs = 5
 
     swa_callback = SwaTestCallback(swa_epoch_start=swa_start, swa_lrs=0.1, swa_validation=True)
-    checkpoint_callback = ModelCheckpoint(monitor='val_loss', save_top_k=3, mode='min')
+    checkpoint_callback = ModelCheckpoint(monitor="val_loss", save_top_k=3, mode="min")
 
     trainer = Trainer(
         default_root_dir=tmpdir,