Make TFForceTokensLogitsProcessor exportable as tf concrete function.
Previously we were doing an inner conversion from `[[int]]` to `dict[int, int]` but `dict` is not something concrete functions like.

This PR provides a fully compatible concrete function export, removing the inner transformation to `dict` tu use `tf.Tensor` only.
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_21900). All of your documentation changes will be reflected on that endpoint.<|||||>Also, check CI haha<|||||>Will handle these 👍🏻 <|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

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