diffusers

f6d6f137 - fix generator/device mismatch in discrete schedulers and DiffusionGemma's canvas init

fix generator/device mismatch in discrete schedulers and DiffusionGemma's canvas init torch.randint/multinomial/rand need the generator and the sampled tensor on the same device. A CPU generator (the portable default recommended for reproducible pipeline calls) broke on any accelerator.