Target framework net10.0 won't work (can't find compatible framework version) unless RuntimeFrameworkVersion is specified (1.9.0-rc3)

Let us assume a .csproj containing the following:

```

net10.0-windows
enable
enable

```

With a simple MyFunctions.cs file containing:
```
using ExcelDna.Integration;

namespace ExcelDNAProject1;

public static class MyFunctions
{
[ExcelFunction(Description = "Hello .NET 10.0 world!")]
public static string SayHello(string name)
{
return "Hello " + name;
}
}
```

This results in a .xll file that will cause this error message to appear:

This machine does have .Net Desktop Runtime 10.0.0 (preview 7) version installed. So this is strange.

However, if RuntimeFrameworkVersion is specified in said .csproj file:
```

net10.0-windows
10.0.0-preview.7.25380.108
enable
enable

```

This results in a working .xll file.

I should note that I've only tested this using both Debug and Release configurations, same results each time.