Add access to test indices Torch 4

Author: gs-olive

.github/workflows/build-test-windows.yml

@@ -14,6 +14,8 @@ jobs:
       with-cpu: false
 
   build:
+    env:
+      CHANNEL: test
     needs: generate-matrix
     permissions:
       id-token: write
@@ -26,8 +28,6 @@ jobs:
             pre-script: packaging/pre_build_script_windows.sh
             smoke-test-script: packaging/smoke_test_windows.py
             package-name: torch_tensorrt
-    env:
-      CHANNEL: test
     name: Build torch-tensorrt whl package
     uses: pytorch/test-infra/.github/workflows/build_wheels_windows.yml@main
     with: