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dfdf85d3 - [pipeline utils] sanitize pretrained_model_name_or_path (#5173)

[pipeline utils] sanitize pretrained_model_name_or_path (#5173) Make sure the repo_id is valid before sending it to huggingface_hub to get a more understandable error message. Re #5110 Co-authored-by: Patrick von Platen <patrick.v.platen@gmail.com>