On more recent versions of Ansible this roles hits an error, due to firewalld being removed from the built in modules.
ERROR! couldn't resolve module/action 'firewalld'. This often indicates a misspelling, missing collection, or incorrect module path.
The error appears to be in '/home/user/.ansible/roles/podman_container_systemd/tasks/main.yml': line 248, column 5, but may
be elsewhere in the file depending on the exact syntax problem.
The offending line appears to be:
- name: ensure container's exposed ports firewall state
^ here
On more recent versions of Ansible this roles hits an error, due to firewalld being removed from the built in modules.