diffusers

4520e122 - adapt PixArtAlphaPipeline for pixart-lcm model (#5974)

adapt PixArtAlphaPipeline for pixart-lcm model (#5974) * adapt PixArtAlphaPipeline for pixart-lcm model * remove original_inference_steps from __call__ --------- Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>