Upgrade DBD::mysql

[dfabulich]

Apropos #459, when I tried upgrading Perl to 5.42, docker compose build failed.

277.5 ! Installing DBD::mysql failed. See /root/.cpanm/work/1756742452.123/build.log for details. Retry with --force to force install it.

ifcomp/IFComp/cpanfile

Line 62 in eaa64ef

requires 'DBD::mysql', '==4.050';

DBD::mysql is pinned to 4.050, which is older than the oldest release listed on https://github.com/perl5-dbi/DBD-mysql/releases?page=2

We should upgrade it (or replace it with DBD::MariaDB).