Fix typo: pas_token_id
Author: ftnext
Pull request: yes

# What does this PR do?

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I noticed that https://github.com/huggingface/transformers/pull/30187 has a typo in error message (transformers 4.41.0), so send this pull request.

```
(main) $ git grep pas_token_id
src/transformers/generation/configuration_utils.py:                "Please set `pas_token_id` explicitly by `model.generation_config.pad_token_id=PAD_TOKEN_ID` to avoid errors in generation, and ensure your `input_ids` input does not have negative values."
```


## Before submitting
- [x] This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
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Models:

- text models: @ArthurZucker and @younesbelkada
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- graph models: @clefourrier

Library:

- flax: @sanchit-gandhi
- generate: @gante
- pipelines: @Narsil
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- tokenizers: @ArthurZucker
- trainer: @muellerzr and @pacman100

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- diffusers: [different repo](https://github.com/huggingface/diffusers)
- rust tokenizers: [different repo](https://github.com/huggingface/tokenizers)

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