Enable scenario-tests on win-x86 and osx-x64

[ViktorHofer]

Contributes to dotnet/source-build#4844

[ViktorHofer]

/azp run sdk-unified-build-full

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[ViktorHofer]

   [FAIL] Microsoft.DotNet.ScenarioTests.SdkTemplateTests.SdkTemplateTests.VerifyWebTemplatePublishBundledAot
    System.InvalidOperationException : Failed to execute D:\a\_work\1\vmr\artifacts\obj\extracted-dotnet-sdk\dotnet.exe publish  -r win-x86 /p:PublishAot=true /bl:D:\a\_work\1\vmr\artifacts\log\Release\scenario-tests\SdkTemplateTestsAot_Web_CSharp\publish--win-x86-aot.binlog
    Exit code: 1
    Determining projects to restore...
      Restored D:\a\_work\1\vmr\src\scenario-tests\artifacts\obj\generatedtests\SdkTemplateTestsAot_Web_CSharp\SdkTemplateTestsAot_Web_CSharp.csproj (in 4.15 sec).
    D:\a\_work\1\vmr\artifacts\obj\extracted-dotnet-sdk\sdk\10.0.100-ci\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.RuntimeIdentifierInference.targets(326,5): message NETSDK1057: You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy [D:\a\_work\1\vmr\src\scenario-tests\artifacts\obj\generatedtests\SdkTemplateTestsAot_Web_CSharp\SdkTemplateTestsAot_Web_CSharp.csproj]
      SdkTemplateTestsAot_Web_CSharp -> D:\a\_work\1\vmr\src\scenario-tests\artifacts\obj\generatedtests\SdkTemplateTestsAot_Web_CSharp\bin\Release\net10.0\win-x86\SdkTemplateTestsAot_Web_CSharp.dll
C:\Users\cloudtest\.nuget\packages\microsoft.dotnet.ilcompiler\10.0.0-ci\build\Microsoft.NETCore.Native.Publish.targets(67,5): error : Add a PackageReference for 'runtime.win-x64.Microsoft.DotNet.ILCompiler' to allow cross-compilation for x86 [D:\a\_work\1\vmr\src\scenario-tests\artifacts\obj\generatedtests\SdkTemplateTestsAot_Web_CSharp\SdkTemplateTestsAot_Web_CSharp.csproj] [D:\a\_work\1\vmr\src\scenario-tests\src\Microsoft.DotNet.ScenarioTests.SdkTemplateTests\Microsoft.DotNet.ScenarioTests.SdkTemplateTests.csproj] [D:\a\_work\1\vmr\repo-projects\scenario-tests.proj]

This one is a great example. Here we are trying to AOT publish for win-x86 on a win-x64 host. This test would need a shipping package from another vertical. But only when host != target.