Fix CUDA compression and decompression functions

[fwyzard]

Fix lzbench_cuda_memcpy, lzbench_nvcomp_compress and lzbench_nvcomp_decompress after the changes to the interface.

[fwyzard]

I'm not familiar with the GitHub CI, is it possible to add a test that the CUDA compressors compiles as well ?

[inikep]

Thanks for a fix. Probably some AWS/GCP instance with a gfx card is required to test lzbench with CUDA. But just building may be possible.