🚨 Bump min kernels to 0.17.2 for better fallback (#49235)
* [Kernels] Fall back to the original forward when a kernel cannot be loaded
With `use_kernels=True`, a mapped kernel whose repo has no build for the
current hardware made `from_pretrained` fail with a FileNotFoundError
instead of keeping the original layer. kernels 0.18 adds
`KernelizeFallback.ALL` (huggingface/kernels#848), which also falls back
on loading errors; pass it to `kernelize` when available.
* better default !
* up
* up
* update
* better test