Fix test_calculate_loss failure by updating peft to version 0.15.0

[gplutop7]

This PR updates the peft dependency to version 0.15.0 to resolve an import error triggered by recent changes in the diffusers library.

Updated peft from ==0.12.0 to ==0.15.0.

Failing Test:
pytest tests/test_trl.py -v -s -k "test_calculate_loss"

[yafshar]

@gplutop7 please check the main branch and #2160 PR. This has already been addressed on main
@astachowiczhabana would you merge that PR in the 1.19-release

[imangohari1]

This pr is not needed. the issue is fixed in #2160.

@regisss @libinta @astachowiczhabana please close.

[gplutop7]

This pr is not needed. the issue is fixed in #2160.

@regisss @libinta @astachowiczhabana please close.

Hi, quick question – has your PR #2160 been included in the 1.19-release branch?
At the moment I can see it was merged into main, but not yet cherry-picked or merged into 1.19-release.
Thanks in advance for confirming!

[regisss]

This pr is not needed. the issue is fixed in #2160.
@regisss @libinta @astachowiczhabana please close.

Hi, quick question – has your PR #2160 been included in the 1.19-release branch? At the moment I can see it was merged into main, but not yet cherry-picked or merged into 1.19-release. Thanks in advance for confirming!

I just did it now! Let me know if that solves your issue?

[imangohari1]

This pr is not needed. the issue is fixed in #2160.
@regisss @libinta @astachowiczhabana please close.

Hi, quick question – has your PR #2160 been included in the 1.19-release branch? At the moment I can see it was merged into main, but not yet cherry-picked or merged into 1.19-release. Thanks in advance for confirming!

I just did it now! Let me know if that solves your issue?

Thanks @regisss

@gplutop7 https://github.com/huggingface/optimum-habana/commits/v1.19-release/ has the PR #2160 now. SHA 9929. please confirm. Thank you.