[katello] pulp upgraded to 2.4.0-0.23.beta in katello nightlies

Just finished upgrading to the newest pulp beta in the nightlies:

To upgrade:

  1. yum update 'pulp'
  2. sudo -u apache pulp-manage-db
  3. katello-service restart

(if using a dev environment, you may want to restart pulp_celerybeat,
pulp_workers, pulp_resource_manager, and httpd manually in place of step
3, or just reboot)

This should fix pulp services not starting properly after a reboot and
other issues. I tested a nightly install and all seemed to go welll,
let me know if you see any issues.