Patch release of Foreman 1.15

Foreman_115_Schedule for an overview of the schedule. Ignore the date here.


Release Backlog

# Tracker Subject Story Points
19634 Bug DHCP lease removal leads to error
19706 Refactor Don't treat DHCP leases as conflicts
21269 Bug Template helper dns_lookup does not work with IP addresses
21426 Bug PXELoader not inherited from the parent host group

Closed Sprints