[Looking for community contribution] support DiffSynth Controlnet in diffusers

### Model/Pipeline/Scheduler description

Hi!
We want to add first party support for DiffSynth controlnet in diffusers, and we are looking for some help from the community!

Let me know if you're interested!

### Open source status

- [x] The model implementation is available.
- [x] The model weights are available (Only relevant if addition is not a scheduler).

### Provide useful links for the implementation

https://huggingface.co/SahilCarterr/Qwen-Image-Blockwise-ControlNet-Canny
https://huggingface.co/SahilCarterr/Qwen-Image-Blockwise-ControlNet-Depth