Zack Angelo

Tried running the `candle-core` test suite on a 5070 and got these errors: ``` failures: ---- argmin_gpu stdout ---- thread 'argmin_gpu' panicked at candle-core/tests/tensor_tests.rs:548:5: assertion `left == right` failed left:...

Rev safetensors to 0.6, float8 to 0.3

1

Fixes fp8 tensor loading