fix: mlflow tmp_dir in /tmp (#20642)

Author: yxtay

src/lightning/pytorch/loggers/mlflow.py

@@ -369,7 +369,7 @@ def _scan_and_log_checkpoints(self, checkpoint_callback: ModelCheckpoint) -> Non
             self.experiment.log_artifact(self._run_id, p, artifact_path)
 
             # Create a temporary directory to log on mlflow
-            with tempfile.TemporaryDirectory(prefix="test", suffix="test", dir=os.getcwd()) as tmp_dir:
+            with tempfile.TemporaryDirectory() as tmp_dir:
                 # Log the metadata
                 with open(f"{tmp_dir}/metadata.yaml", "w") as tmp_file_metadata:
                     yaml.dump(metadata, tmp_file_metadata, default_flow_style=False)