Support for dotnet restore against private/authenticated NuGet repositories

[flcdrg]

I'm working some on some projects where JFrog Artifactory is used for private authenticated NuGet feeds.

When we currently build Docker images for the .NET applications, the Dockerfile contains a line like this (where the NuGet.config file has been configured already with the credentials)

RUN --mount=type=secret,id=nuget,dst=/src/NuGet.Config dotnet restore Project/Project.csproj

Is there any ability to do something like that with the Container SDK?