(maint) Update rubocop rules to that of the PDK
(maint) Update rubocop rules to that of the PDK

This commit updates the rubocop rules to reflect that used by the Puppet
Development Kit (PDK) (reference 1.3.2-0-g07678c8).  This is in preparation
of the module being PDK converted.

puppetlabs/puppetlabs-reboot,puppetlabs/puppetlabs-reboot