convert_dinov2: ignore pyright errors

And save converted weights into safetensors instead of pickle

scripts/conversion/convert_dinov2.py

@@ -2,6 +2,8 @@
 
 import torch
 
+from refiners.fluxion.utils import save_to_safetensors
+
 
 def convert_dinov2_facebook(weights: dict[str, torch.Tensor]) -> None:
     """Convert a DINOv2 weights from facebook to refiners."""
@@ -126,9 +128,9 @@ def main() -> None:
     parser.add_argument("--output_path", type=str, required=True)
     args = parser.parse_args()
 
-    weights = torch.load(args.weights_path)
+    weights = torch.load(args.weights_path)  # type: ignore
     convert_dinov2_facebook(weights)
-    torch.save(weights, args.output_path)
+    save_to_safetensors(path=args.output_path, tensors=weights)
 
 
 if __name__ == "__main__":