GenerateNativeVersionFile should only run when the TargetOS is windows-like

[steveisok]

The condition below will cause the target to run on Windows regardless if you're cross compiling or not.

arcade/src/Microsoft.DotNet.Arcade.Sdk/tools/Version.targets

Line 63 in 91630b3

<PropertyGroup Condition="'$(OS)' == 'Windows_NT'">

To date, that's been ok because building on windows has only dealt with windows-like targets. dotnet/runtime#112256 enables building for android on windows and so the condition above no longer holds.

We should utilize the Unified Build output controls and fall back to the HostOS if the TargetOS is not specified.