[docs] update `guidance_scale` docstring for guidance_distilled models. (#11935)
* update guidance_scale docstring for guidance_distilled models.
* Update pipeline_flux.py
* Update pipeline_flux_control.py
* Update pipeline_flux_kontext.py
* Update pipeline_flux_kontext_inpaint.py
* Update pipeline_sana_sprint.py
* style
* Update pipeline_hidream_image.py
* Update pipeline_chroma.py
* Update pipeline_chroma_img2img.py
* Update pipeline_hunyuan_video.py
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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>