Use Conda to install CUDA Toolkit (for 12.x)

[jakirkham]

Now that the CUDA Toolkit is fully supplied via Conda packages starting with CUDA 12.0, there is no need to depend on the nvidia/cuda images (except for CUDA 11.x)

Given this, it might make sense to change the FROM logic here to simply use the Linux distro image we would like for CUDA 12.x

https://github.com/rapidsai/miniforge-cuda/blob/0e20886991c4fcb178d73bd0f1cf3224d1b0e0a8/Dockerfile#L3

The CUDA 11.x case would still need the nvidia/cuda images

[jakirkham]

@ajschmidt8 do you have thoughts/preferences on how we go about this?

[ajschmidt8]

no thoughts. just that the change should be broadcasted loudly in case there are any unexpected issues.

[vyasr]

We still need a container with the CUDA driver installed, so we would presumably have to install that manually into the image.