Lower pins for apt and concat
Lower pins for apt and concat

Version 3.0.0 of apt and concat have a requirement of puppet 4.7 which
is greater than our minmum supported versions. So for now let's pin
these to older versions until we can bump our minimums.

Change-Id: I156b8f3b40501b0191f317a8d36cbba99d172965

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration