Security update for rmt-server

This update for rmt-server fixes the following issue: Update to version 3.1 bsc1274715. CVE-2026-42256: net-imap: hostile server can perform a DoS on client authenticating a connection with SCRAM-SHA1 or SCRAM-SHA2 bsc1265369. Changes for rmt-server: Version 3.1: Remove all errors and warnings du...