Fix function call that we forgot to update in #6606 (#6636)

## Summary

Fix function call that we forgot to update in #6606

## QA Instructions

Run a TiledMultiDiffusionDenoiseLatents invocation and make sure it
doesn't crash.

## Checklist

- [x] _The PR has a short but descriptive title, suitable for a
changelog_
- [x] _Tests added / updated (if applicable)_
- [x] _Documentation added / updated (if applicable)_

Author: RyanJDick

invokeai/app/invocations/tiled_multi_diffusion_denoise_latents.py

@@ -222,7 +222,8 @@ def _lora_loader() -> Iterator[Tuple[LoRAModelRaw, float]]:
                 context=context,
                 positive_conditioning_field=self.positive_conditioning,
                 negative_conditioning_field=self.negative_conditioning,
-                unet=unet,
+                device=unet.device,
+                dtype=unet.dtype,
                 latent_height=latent_tile_height,
                 latent_width=latent_tile_width,
                 cfg_scale=self.cfg_scale,