Quantized KV cache: update quanto (#31052)
* quanto latest version was refactored
* add error msg
* incorrect compare sign
* Update src/transformers/cache_utils.py
Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>
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Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>