Target cuda 11.7/11.8

[thewtex]

Available on longleaf, along with:

cuda: cuda/8.0, cuda/9.0, cuda/9.2, cuda/10.0, cuda/10.1, cuda/11.2, cuda/11.3, cuda/11.4, cuda/11.5, cuda/11.8, cuda/12.2

[thewtex]

Update: current stable torch on PyPI uses cuda 11.7/11.8, so let's target that instead to be consistent.

https://pytorch.org/get-started/locally/

[thewtex]

As we continue to simplify the segmentation and registration methods to just depend on the torch interface, we theoretically should not be too dependent on a cuda versions.

[dzenanz]

I don't think we are dependent on CUDA versions.