Works around a bug in MariaDB >=10.4 where the Nextcloud setup fails after a while, gets stuck or shows interesting behaviour like not creating users

See: https://github.com/docker-library/mariadb/issues/262

tasks/main.yml

@@ -29,6 +29,8 @@
     group: "{{ docker_user }}"
     mode: '0640'
     content: |
+      # See https://github.com/docker-library/mariadb/issues/262
+      MYSQL_INITDB_SKIP_TZINFO=1
       MYSQL_ROOT_PASSWORD={{ mariadb_root_password }}
       MYSQL_DATABASE={{ mysql_database }}
       MYSQL_PASSWORD={{ nextcloud_mariadb_password }}