The RDO and CentOS Advanced Virt repositories contains
packages that should be considered hotfixes to version
found in Base repo and similar and should have priority
The yumrepo_core  change that was released in 1.0.7
adds the module_hotfixes parameter to yumrepo and it's
included in Puppet >= 6.15.0 which we should set to true
to make sure packages in RDO and CentOS Advanced Virt
repos is considered hotfixes upon base packages.
When we only support Puppet 7 and forward we should set
this by default for the yumrepo resources.