Bump all MariaDB versions to latest

[todeveni]

To fix incompatibilities with dump files, we should upgrade all (supported) MariaDB versions to latest. It seems that Bitnami is offering newer MariaDB versions only in debian12 flavour, but this shouldn't be a problem?

This is a problem when generating a dump in production, running latest LTS version of MariaDB, and trying to import it in Lando.

Importing /app/db.sql...
ERROR at line 1: Unknown command '\-'.
Import failed.

Sure we can fix this running sed -i '1{/999999.*sandbox/d}' db.sql locally before running /helpers/sql-import.sh, but preferably this should work out of the box.

[todeveni]

Any possibility for a 1.4.0 release of mariadb-plugin to get #56 changes into production? @reynoldsalec