fea(trl): updated peft version

[imangohari1]

What does this PR do?

tldr; with diffuser update to 0.34.0 #2152 the min requirement for perf is bumped to 0.15.0. trl uses diffuser pipelines and we are bumping the peft version accordingly.

Notes

• trl config https://github.com/huggingface/trl/blob/main/setup.cfg suggests anything that 0.8.0 should be fine.
• Details of issue: Ig/diffuser 0.34.0 #2152 (comment)

ImportError: peft>=0.15.0 is required for a normal functioning of this module, but found peft==0.12.0.

Conducted tests

• python -m pytest tests/test_examples.py::MultiCardSFTChatExampleTester::test_sft_Qwen2-7B_multi_card
  • local job
  • passes
  • no perf regression (on G2).
• python -m pytest tests/test_trl.py:
  • local job
  • passes
  • no perf regression (on G2).
• CI: G2#185
  • passes
  • no perf regression
• README:
  • https://github.com/huggingface/optimum-habana/blob/main/examples/trl/README.md
  • all ran to success on G2.

Fixes # (issue)

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Did you make sure to update the documentation with your changes?
• Did you write any new necessary tests?

[imangohari1]

Hi @regisss
This is follow up to the #2152 to fix the peft version for trl. please review.
@yafshar @dsocek @astachowiczhabana FYI

[yafshar]

LGTM!

[dsocek]

+1 (IMO best of 3 proposed solutions)

[regisss]

LGTM

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