upgrade: Create and sign PTF repos the same way as normal install
upgrade: Create and sign PTF repos the same way as normal install

We were missing this bit when creating new PTF repos for next version
of the product.

SUSE-Cloud/automation,gosipyan/automation,gosipyan/automation,aspiers/automation,SUSE-Cloud/automation,gosipyan/automation,aspiers/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,aspiers/automation,gosipyan/automation