Add a NVHPC GPU and CPU debug build on Phoenix

[sbryngelson]

When Phoenix supports NVHPC>=23.5 or so, add debug builds to the CI for GPU build. Note that CPU debug build is not working with new NVHPC versions for some reason, but I think it's fine to just not support that so I killed it with #238 #237

[sbryngelson]

Update - PACE Phoenix should have an updated NVHPC by end of 2023.

[sbryngelson]

Update - PACE Phoenix does not have an updated NVHPC by end of 2023. Forecasted for Jan or Feb 24.

[sbryngelson]

Now we are waiting for them to add NVHPC24.1. They are still having bugs.

[sbryngelson]

closing due to this not really being interesting or worthwhile