Replaced warning.warn with logging.warning
Author: hegdeadithyak
Pull request: yes

# What does this PR do?

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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 read the [contributor guideline](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md#start-contributing-pull-requests),
      Pull Request section?
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- [ ] Did you write any new necessary tests?


## Who can review?

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- text models: @ArthurZucker and @younesbelkada
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Library:

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- pipelines: @Narsil
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Integrations:

- deepspeed: HF Trainer/Accelerate: @pacman100
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Documentation: @stevhliu and @MKhalusova

HF projects:

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- rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)

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