Test on CUDA 12.8 (#523)

Author: NicolasHug

.github/workflows/linux_cuda_wheel.yaml

@@ -66,7 +66,7 @@ jobs:
           # For the actual release we should add that label and change this to
           # include more python versions.
         python-version: ['3.9']
-        cuda-version: ['11.8', '12.6']
+        cuda-version: ['11.8', '12.6', '12.8']
         # TODO: put back ffmpeg 5 https://github.com/pytorch/torchcodec/issues/325
         ffmpeg-version-for-tests: ['4.4.2', '6', '7']