Fixes #35626 - Registration & proxy's registration_url
Use registration_url from Registration SP modulefor registration command.
RFC: https://community.theforeman.org/t/rfc-host-registration-and-load-balancers/30462Katello: https://projects.theforeman.org/issues/35627Smart Proxy: https://projects.theforeman.org/issues/35639
Fixes #35626 - Registration & proxy's registration_url
Use registration_url from Registration SP module
for registration command.
RFC: https://community.theforeman.org/t/rfc-host-registration-and-load-balancers/30462
Katello: https://projects.theforeman.org/issues/35627
Smart Proxy: https://projects.theforeman.org/issues/35639