databases/postgresql??-*: Update to latest minor versions

The PostgreSQL Global Development Group has released an update to all
supported versions of PostgreSQL, including 16.4, 15.8, 14.13, 13.16,
and 12.20. This release fixes 1 security vulnerability and over 55 bugs
reported over the last several months.

PR: 279671 - make the rc script service jails aware
PR: 279536 - remove LLVM max version restriction
PR: 278887 - SETENV -> SETENVI for -contrib ports

Release notes: https://www.postgresql.org/docs/release/