Foreman Maintain

Description of problem:
See Summary and Reproducer

Version-Release number of selected component (if applicable):
6.8

How reproducible:
100%

Steps to Reproduce:
1. foreman-maintain service list

2. foreman-maintain service restart

Actual results:
1. output does not list either of three sidekiq services
2. restart does bounce all three services (which is good)

Expected results:
1. service list to enumarate the three missing services (no other misses)