Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1436139

Description of problem:
When there are any changes in the /etc/foreman-installer/custom-hiera.yaml it should be included in foreman-debug. This will help the person analyzing the logs pinpoint changes quicker and easier way than going through each configuration file of every single service managed by installer / required by satellite.

Version-Release number of selected component (if applicable):
Satellite 6.2.8

Actual results:
/etc/foreman-installer/custom-hiera.yaml is not included

Expected results:
/etc/foreman-installer/custom-hiera.yaml will be included

Additional info:
https://bugzilla.redhat.com/show_bug.cgi?id=1305782