• This issue is blocking
• This issue is causing unreasonable pain

Nuget/NugetClient is going to use build pipeline to always use from mirror like dotnet/runtime, dotnet/aspnetcore. So in order to do that, we need to

1. Translate Nuget/NugetClient-translated to Nuget/NugetClient here -> https://github.com/dotnet/arcade-services/blob/0833f8529708496a2bb7e9a591d8e6ada0fdce81/src/Maestro/Microsoft.DotNet.Maestro.Tasks/src/PushMetadataToBuildAssetRegistry.cs#L557-L606
2. Update subscriptions and default channel to use Nuget/NugetClient-trusted

[Edit: Nuget does not have any default channels, so no need to make any changes to default channels]
cc : @riarenas @zivkan