gemma 2 slow tests
* nit * toctree issue * protect gemma2 tests as well * sdpa supported
* inital commit * Add doc * protect? * fixup stuffs * update tests * fix build documentation * mmmmmmm config attributes * style * nit * uodate * nit * Fix docs * protect some stuff --------- Co-authored-by: Lysandre <lysandre@huggingface.co>