Add IP-Adapter to StableDiffusionXLControlNetImg2ImgPipeline (#6293)
* add IP-Adapter to StableDiffusionXLControlNetImg2ImgPipeline
Update src/diffusers/pipelines/controlnet/pipeline_controlnet_sd_xl_img2img.py
Co-authored-by: YiYi Xu <yixu310@gmail.com>
fix tests
* fix failing test
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Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>