Support for private actions #329
Description
As mentioned in "Community Tools Bring Lockfile Support to GitHub Actions" by Andrew Nesbitt:
Private actions need separate authentication that the runner handles automatically.
we should ensure that ghasum works for users that use private actions.
I have no experience with private actions so I don't know if it already automatically works or not, and if not what should change. Any and all help/insight/suggestions would be appreciated.