feat: update ci_windows.yml to update PATH to expose CUDA codegen backend.

Author: madhav-madhusoodanan

.github/workflows/ci_windows.yml

@@ -67,6 +67,10 @@ jobs:
       - name: Add rustup components
         run: rustup component add rustfmt clippy
 
+      - name: Update PATH to expose CUDA codegen backend
+        run: |
+          $env:PATH += ";C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.8\nvvm\bin"
+
       - name: Verify CUDA, Rust installation
         run: |
           nvcc --version