BUG #16573: pgbouncer 1.14 addition to EL6 breaks installation

The following bug has been logged on the website:

Bug reference:      16573
Logged by:          Andrew Greenwood
Email address:      andrew@agrnwd.com
PostgreSQL version: 11.0
Operating system:   CentOS 6.10
Description:

Last week you guys added pgbouncer 1.14.0 to your EL6 repository.. I guess
without even first testing it would install correctly??
 
https://download.postgresql.org/pub/repos/yum/common/redhat/rhel-6-x86_64/pgbouncer-1.14.0-1.rhel6.x86_64.rpm

It depends on a package that does not even exist for EL6 or ever existed
according to rpmfind.. 
Error: Package: pgbouncer-1.14.0-1.rhel6.x86_64 (pgdg-common)
           Requires: python3-psycopg2

Previous packages depend on python-psycopg2, not sure if 1.14 makes a hard
requirement on python3 or not? 

But you are not intending to continue to support EL6 until it's official EOL
then you should probably completely remove this package from your EL6 stream
so at least people can continue to install 1.13 from epel which works.