test modern build stack as part of windows

scripts/windows/ci/test.ps1

@@ -2,6 +2,7 @@
 $jUnit = Join-Path $env:TEMP 'self-test-junit-0.xml'
 
 $tests = @(
+  'modern build stack'
   '^assets'
   '^autoupdate'
   '^dynamic import.*development'
@@ -27,4 +28,4 @@ If ($selfTestExitCode -eq 0) {
 
 If ($selfTestExitCode -ne 0) {
   Exit $selfTestExitCode
-}
+}