Update CUDA version in workflow to match CI runner

The Windows GPU runners have CUDA 13.0 installed. The export job
continues to use 12.8 (via Docker), relying on CUDA forward
compatibility for the AOTI blobs.

Author: larryliu0820

.github/workflows/cuda-windows.yml

@@ -15,9 +15,6 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }}
   cancel-in-progress: false
 
-env:
-  CUDA_VERSION: "12.8"
-
 jobs:
   export-model-cuda-windows-artifact:
     name: export-model-cuda-windows-artifact
@@ -44,7 +41,7 @@ jobs:
       secrets-env: EXECUTORCH_HF_TOKEN
       runner: linux.g5.4xlarge.nvidia.gpu
       gpu-arch-type: cuda
-      gpu-arch-version: ${{ env.CUDA_VERSION }}
+      gpu-arch-version: 12.8
       docker-image: ci-image:executorch-ubuntu-22.04-cuda-windows
       submodules: recursive
       upload-artifact: ${{ matrix.model.repo }}-${{ matrix.model.name }}-cuda-windows-${{ matrix.quant }}
@@ -101,6 +98,8 @@ jobs:
           - "quantized-int4-weight-only"
     with:
       timeout: 240
+      gpu-arch-type: cuda
+      gpu-arch-version: 13.0
       submodules: recursive
       download-artifact: ${{ matrix.model.repo }}-${{ matrix.model.name }}-cuda-windows-${{ matrix.quant }}
       ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
@@ -117,10 +116,5 @@ jobs:
             throw 'RUNNER_ARTIFACT_DIR is empty. Ensure download-artifact is configured for windows_job.yml.'
           }
 
-          .ci/scripts/test_model_e2e_windows.ps1 `
-            -Device cuda-windows `
-            -HfModel '${{ matrix.model.repo }}/${{ matrix.model.name }}' `
-            -QuantName '${{ matrix.quant }}' `
-            -ModelDir \$artifactDir `
-            -ExpectedCudaVersion '${{ env.CUDA_VERSION }}'
+          .ci/scripts/test_model_e2e_windows.ps1 -Device cuda-windows -HfModel '${{ matrix.model.repo }}/${{ matrix.model.name }}' -QuantName '${{ matrix.quant }}' -ModelDir \$artifactDir -ExpectedCudaVersion '13.0'
         }"