V0.10.1 patch (#1637)
* Re-add xformers enable to UNet2DCondition (#1627)
* finish
* fix
* Update tests/models/test_models_unet_2d.py
* style
Co-authored-by: Anton Lozhkov <anton@huggingface.co>
* Release: v0.10.1
Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>
