archive module requirement

[a-dekker]

As we are still in the process of abandoning the module camptocamp/archive, we cannot use puppet/archive ATM. So using puppet/staging would be a good alternative for now. But unfortunately, puppet/archive is always included: https://github.com/voxpupuli/puppet-confluence/blob/master/manifests/install.pp#L7

A "require archive" in the archive case (https://github.com/voxpupuli/puppet-confluence/blob/master/manifests/install.pp#L70) might help in this case. Could this be implemented?