Transformers v5 Is Out

Only the rc0, v5 is not GA. Hugging Face has been confusing on this point on social media.

> Nothing is final and things are still actively in movement. We have a section dedicated to what is planned for future release candidates, yet is known not to work in the RC0. Look for "Disclaimers for the RC0".

> We'll be eagerly awaiting your feedback in our GitHub issues!