Update PostgreSQL 9.6.21 -> 9.6.22
Update PostgreSQL 9.6.21 -> 9.6.22

This resolves a large number of bugs as well as CVE-2021-32027 and CVE-2021-32028

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server,chef/chef-server