Update transformers to 4.51 (#3148)

* update transformres

* Upgrading the nix deps too.

* Forcing torchvision to be in there.

* Fixing bug in mllama.

* Those tests cannot be run in CI.

* Lint.

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Co-authored-by: Pedro Cuenca <pedro@huggingface.co>
Co-authored-by: Nicolas Patry <patry.nicolas@protonmail.com>