Extend the minder CLI to call the ReconcileEntityRegistration when auto registration is enabled on a provider and during repo register –all

[jhrozek]

To provide an ability for an end-user to force the auto-registration of repositories, we want to extend at the very minimum the repo register CLI to provide an --all switch:

minder provider update –set-attr=auto_registration=repository
minder repo register --all (--provider=github-app-stacklok)

we should also consider calling the auto-enrollment either automatically or based on a flag on changing the repo configuration.