Description of problem:

We added the `he_pause_before_engine_setup` variable to the hosted-engine-setup ansible role in order be able to pause the deployment before running engine-setup and make changes in the bootstrap engine VM.
This is useful for example to update repos for the engine-setup.

Usage:
$ hosted-engine --deploy --ansible-extra-vars=he_pause_before_engine_setup=true

Documentation for that, can be found in - https://github.com/oVirt/ovirt-ansible-collection/tree/master/roles/hosted_engine_setup#make-changes-in-the-engine-vm-during-the-deployment 
in the manual section.

See also bug 1959273