fix: add clear error message when mistral-common is missing for AutoTokenizer loading Voxtral#41928

junjunjd wants to merge 1 commit intohuggingface:mainhuggingface/transformers:mainfrom

junjunjd:fix/error-msg-voxtral-mistral-commonjunjunjd/transformers:fix/error-msg-voxtral-mistral-commonCopy head branch name to clipboard