test: update windows test to exit if test fails

Author: nattb8

sample/Tests/test_windows.ps1

@@ -127,16 +127,28 @@ Login "test/test_windows.py::WindowsTest::test_1_device_code_login"
 
 # Run IMX and zkEVM tests
 Run-Pytest "test/test.py"
+if (-not $?) {
+    Write-Output "Tests failed. Stopping execution."
+    exit 1
+}
 
 # Relogin
 Stop-SampleApp
 Start-SampleApp
 Run-Pytest "test/test_windows.py::WindowsTest::test_3_device_code_relogin"
+if (-not $?) {
+    Write-Output "Relogin test failed. Stopping execution."
+    exit 1
+}
 
 # Reconnect
 Stop-SampleApp
 Start-SampleApp
 Run-Pytest "test/test_windows.py::WindowsTest::test_4_device_code_reconnect"
+if (-not $?) {
+    Write-Output "Reconnect test failed. Stopping execution."
+    exit 1
+}
 
 # Logout
 Logout