chore(format): run black on dev

Author: github-actions[bot]

ChatTTS/utils/io.py

@@ -15,6 +15,7 @@
 else:
     FileLike = Union[str, os.PathLike, IO[bytes]]
 
+
 @torch.inference_mode()
 def load_safetensors(filename: str):
     state_dict_tensors = {}