mlaunch: `System.InvalidCastException` when using with iOS 18

[matouskozak]

When testing dotnet/xharness dotnet/xharness#1345 on scouting queue including iOS 18.1 devices. We're seeing the following error message:

[12:27:27] dbug: [TCP tunnel] error MT0000: Unexpected error - Please file a bug report at https://github.com/xamarin/xamarin-macios/issues/new
[12:27:27] dbug: [TCP tunnel] System.InvalidCastException: Unable to cast object of type 'Xamarin.Hosting.DeviceCtlDevice' to type 'Xamarin.Hosting.RealDevice'.
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Hosting.DeviceDiscovery.FindDeviceWithAMDeviceAsync(String, Boolean , Boolean ) in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Hosting/DeviceDiscovery.cs:line 89
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Launcher.DevController.CreateTcpTunnel(String, LaunchConfig) in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Launcher/controller-device.cs:line 860
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Launcher.Driver.MainAsync() in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Launcher/Main.cs:line 534
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Utils.NSRunLoopExtensions.RunUntilTaskCompletion[T](NSRunLoop, Task`1) in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Utils/Extensions.cs:line 29
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Launcher.Driver.Main2(String[]) in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Launcher/Main.cs:line 441
[12:27:27] dbug: [TCP tunnel]    at Xamarin.Launcher.Driver.Main(String[]) in /Users/builder/azdo/_work/9/s/src/Xamarin.Hosting/Xamarin.Launcher/Main.cs:line 128
[12:27:27] dbug: [TCP tunnel] Process mlaunch exited with 1

full log: https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-xharness-refs-pull-1345-merge-4976d72e678241ea90/System.Buffers.Tests/1/console.b4419600.log?helixlogtype=result

This error was supposed to be fixed as per #22394 (comment) but appears to be still present. cc: @rolfbjarne

fyi: to test mlaunch changes on physical iOS 18 devices, you can use dotnet/xharness#1345, just updating the mlaunch to the latest version should be sufficient.