Fix pipeline_stable_audio formating (huggingface#10114)

Author: hlky

src/diffusers/pipelines/stable_audio/pipeline_stable_audio.py

@@ -34,6 +34,7 @@
 from ..pipeline_utils import AudioPipelineOutput, DiffusionPipeline
 from .modeling_stable_audio import StableAudioProjectionModel
 
+
 if is_torch_xla_available():
     import torch_xla.core.xla_model as xm
 
@@ -732,7 +733,7 @@ def __call__(
                     if callback is not None and i % callback_steps == 0:
                         step_idx = i // getattr(self.scheduler, "order", 1)
                         callback(step_idx, t, latents)
-                        
+
                 if XLA_AVAILABLE:
                     xm.mark_step()