databases/pg_rman: update 1.2.3 -> 1.3.3, unbreak, new distsite

PR: 213486
Changes: https://github.com/ossc-db/pg_rman/releases
Submitted by: Lacey Powers <lacey.leanne@gmail.com>
Reviewed by: rainer@ultra-secure.de
Approved by: kuriyama (maintainer timeout)