Fix package release (#4)

* sdist packaging

* Bump version

* Added container image

* Get rid of cuda container, added env

.github/workflows/release.yml

@@ -14,6 +14,9 @@ on:
           - "minor"
           - "patch"
 
+env:
+  CUDA_HOME: "/usr" # nvcc is not required, but CUDAExtension needs that env
+
 jobs:
   release:
     runs-on: ubuntu-latest
@@ -28,6 +31,7 @@ jobs:
       name: pypi
       url: https://test.pypi.org/project/ds-splat
 
+
     steps:
       - uses: actions/checkout@v3
         with: