The job was canceled because "_7_3_mariadb_flarum__Mari" failed.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires flarum/gdpr dev-main -> satisfiable by flarum/gdpr[dev-main]. - flarum/gdpr dev-main requires php 8.* -> your php version (7.3.33) does not satisfy that requirement.