disable deepspeed when setting up fake trainer
Author: winglian
Pull request: yes

# What does this PR do?
When training with deepspeed and `WANDB_LOG_MODEL` is enabled, on train end, a fake trainer is created on the train end to create artifacts, but results in https://gist.github.com/winglian/e4640bb86860678ba2415cde54d986f4

This removes deepspeed from the args to workaround that issue.

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Fixes # (issue)


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Comments:
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Can you please use `make style` to fix CI 🤗 

This is really necessary, thanks for the fix.


@bot /style

Style fixes have been applied. [View the workflow run here](https://github.com/huggingface/transformers/actions/runs/15045910461).