Looks like the pipeline would need some auth work to be able to provision arbitrary Xcode versions. Don't worry about this yet, though, as I don't want to add an hour to CI anyway. I may just change this to 13.3 or wait for https://github.com/actions/virtual-environments/issues/5463 to finalize.
Xamarin.Provisioning.ProvisioningException: Unable to download source (https://dl.internalx.com/xcodes/Xcode_13.3.1.xip) for 'Xcode 13.3.1'
---> System.Net.Http.HttpRequestException: Response status code does not indicate success: 401 (Unauthorized).
Looks like the pipeline would need some auth work to be able to provision arbitrary Xcode versions. Don't worry about this yet, though, as I don't want to add an hour to CI anyway. I may just change this to 13.3 or wait for https://github.com/actions/virtual-environments/issues/5463 to finalize.