feat(role): add phpmyadmin

[JigSawFr]

Description

A web interface for MySQL and MariaDB.

• Homepage: https://www.phpmyadmin.net
• Github Repository: https://github.com/phpmyadmin/phpmyadmin
• Docker Github Repository: https://hub.docker.com/_/phpmyadmin
• Documentation: https://docs.phpmyadmin.net/

How Has This Been Tested?

• [x] App is working as expected. (Container is alive and answering to requests)
• [ ] App use a dedicated folder in /opt directory.
• [x] App secured by Authelia SSO authentication system.
• [x] A subdomain is correctly created for the web-ui. (via Cloudflare)
• [x] Custom TimeZone is set to the container and application.
• [ ] Custom UID/GID is set to the container to run under Saltbox user.
• [x] Healthcheck is added to the container.
• [ ] App use a custom output folder (recordings, conversions, etc.) not in /opt.