GenerateNativeVersionFile should only run when the TargetOS is windows-like

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

https://github.com/dotnet/arcade/blob/91630b31ce859c28f637b62b566ea8829b982f2c/src/Microsoft.DotNet.Arcade.Sdk/tools/Version.targets#L63

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

We should utilize the Unified Build [output controls](https://github.com/dotnet/arcade/blob/7ae3923f26bb1c5406c75446764a9e8dcaf6126c/Documentation/UnifiedBuild/Unified-Build-Controls.md#output-controls) and fall back to the HostOS if the TargetOS is not specified.