Soft error whisper.
Author: Narsil
Pull request: yes

# What does this PR do?

Moving the hard error on whisper timestamp to a soft error.

Results are definitely odd potentially non sensical, but at least we're not hard errorring out.



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Fixes # (issue)


## Before submitting
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Fix #22053 https://github.com/huggingface/transformers/issues/22053

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Comments:
_The documentation is not available anymore as the PR was closed or merged._