diffusers

ac61eefc - fix DPM Scheduler with `use_karras_sigmas` option (#6477)

fix DPM Scheduler with `use_karras_sigmas` option (#6477) * fix --------- Co-authored-by: yiyixuxu <yixu310@gmail,com> Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>