Add Windows build jobs to CI

Author: stotko

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          ["ubuntu-22.04"] # "windows-2025" # Disabled until solution/workaround for NVTX is present
+          ["ubuntu-22.04", "windows-2025"]
           # "ubuntu-24.04" # Postponed as long as testing against CUDA 12.1, needs 12.6+
         python: ["3.9", "3.10", "3.11", "3.12", "3.13"]