databases/postgresql??-server: Upgrade to latest version

The PostgreSQL Global Development Group has released an update to all
supported versions of PostgreSQL, including 14.2, 13.6, 12.10, 11.15,
and 10.20. This release fixes over 55 bugs reported over the last three
months.

Announcement: https://www.postgresql.org/about/news/postgresql-142-136-1210-1115-and-1020-released-2402/
Release notes: https://www.postgresql.org/docs/release/