Add failing Windows Test CI if FlaxTests.exe fails

.github/workflows/tests.yml

@@ -73,9 +73,11 @@ jobs:
         .\Development\Scripts\Windows\CallBuildTool.bat -build -log -dotnet=8 -arch=x64 -platform=Windows -configuration=Development -buildtargets=FlaxTestsTarget
         dotnet msbuild Source\Tools\Flax.Build.Tests\Flax.Build.Tests.csproj /m /t:Restore,Build /p:Configuration=Debug /p:Platform=AnyCPU /nologo
     - name: Test
+      shell: pwsh
       run: |
+        $ErrorActionPreference = "Stop"
         .\Binaries\Editor\Win64\Development\FlaxTests.exe
-        if not %errorlevel% == 0 exit %errorlevel%
+        if(!$?) { Exit LastExitCode }
         dotnet test -f net8.0 Binaries\Tests\Flax.Build.Tests.dll
         xcopy /y Binaries\Editor\Win64\Development\FlaxEngine.CSharp.dll Binaries\Tests
         xcopy /y Binaries\Editor\Win64\Development\FlaxEngine.CSharp.runtimeconfig.json Binaries\Tests