Proper reference to GitHub Workspace folder

Author: isc-tleavitt

.github/workflows/main.yml

@@ -88,7 +88,7 @@ jobs:
         if: always()
         with:
           name: "PreIRISInstallationPackage"
-          path: ${{ env.GITHUB_WORKSPACE }}/${{ env.artifact_dir }}/*.xml
+          path: ${{ github.workspace }}/${{ env.artifact_dir }}/*.xml
 
       - name: XUnit Viewer
         id: xunit-viewer