Dreambooth SDXL LoRA - Update PEFT for DoRA

[shawnrushefsky]

The sdxl script assumes the presence of a dora related property that does not exist until peft 0.9.0

What does this PR do?

Recent updates to the sdxl dreambooth lora training script require a newer version of peft to be installed.

Before submitting

• [ ] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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• [ ] Did you write any new necessary tests?

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@sayakpaul

[sayakpaul]

DoRA can be only used with peft installed from source and we make it clear from the readme. I don’t think this PR is relevant in that case.

[shawnrushefsky]

It breaks for non-DoRA training as well, though.

[github-actions[bot]]

This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the contributing guidelines are likely to be ignored.

[sayakpaul]

Let's just pin the version of PEFT to be at least 0.9.0.