fix: torch load weights only as security issue

diffusion_models/utils/schemas.py

@@ -92,7 +92,7 @@ def from_file(cls, file_path: str) -> "Checkpoint":
  Returns:
  A checkpoint instance.
  """
- checkpoint = torch.load(f=file_path)
+ checkpoint = torch.load(f=file_path, weights_only=True)
  checkpoint = cls(**checkpoint)
  beta_scheduler_config = BetaSchedulerConfiguration(
  **checkpoint.beta_scheduler_config