KC and mariadb upgrade

[imartinezortiz]

Check following resources:

• https://github.com/keycloak/keycloak/tree/main/quarkus/container
  • https://github.com/keycloak/keycloak-containers/tree/main/docker-compose-examples
• https://github.com/MariaDB/mariadb-docker/ issues/94
• https://mariadb.org/mariadb-server-docker-official-images-healthcheck-without-mysqladmin/
• https://github.com/MariaDB/mariadb-docker/ pull/508

[imartinezortiz]

Try to send a PR to upstream now that seems that the project is active again:

• https://github.com/Frankniesten/Limesurvey-SAML-Authentication/ pull/6

[imartinezortiz]

Beware that LS seems to create responses' tables using MyISAM but seems that now can be configured:

• https://github.com/LimeSurvey/LimeSurvey/ pull/1043
• https://mariadb.com/kb/en/converting-tables-from-myisam-to-innodb/