CentOS 9: Disable unit tests dependent on puppet-postgresql
CentOS 9: Disable unit tests dependent on puppet-postgresql

The puppt-postgresql module does not support CentOS 9 yet and requires
some version parameters to be run on CentOS 9. This change disables
unit tests requiring that module, until the module supports CentOS 9.

Change-Id: Ia565bc26a9919efe61f938eb6436df30f13ea3e5

openstack/puppet-neutron,openstack/puppet-neutron