Vectorize RepetitionPenaltyLogitsProcessor to improve performance
Author: bdalal
Pull request: yes

# What does this PR do?

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This PR replaces the nested loops in the [`RepetitionPenaltyLogitsProcessor`](https://github.com/huggingface/transformers/blob/a1bbcf3f6c20e15fe799a8659d6b7bd36fdf11ed/src/transformers/generation_logits_process.py#L147-L155) with a vectorized implementation to provide speedups on long sequences of roughly 3 orders of magnitude on GPUs and 2 orders of magnitude on CPUs.

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Fixes # [8596](https://github.com/huggingface/transformers/issues/8596)


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Comments:
```
ValueError: Connection error, and we cannot find the requested files in the cached path. Please try again or make sure your Internet connection is on.
```
Seems like a flake. Tests passes locally.