Include Ubuntu and Windows in CUDA build matrix

Co-authored-by: czxdev <36617515+czxdev@users.noreply.github.com>

Author: Copilot

.github/workflows/build-wheels-cuda.yaml

@@ -26,7 +26,7 @@ jobs:
         id: set-matrix
         run: |
           $matrix = @{
-              'os' = @('windows-2022')
+              'os' = @('ubuntu-22.04', 'windows-2022')
               # wheel.py-api = "py3" makes the CUDA wheel interpreter-agnostic,
               # so one builder per toolkit version is sufficient.
               'pyver' = @("3.9")