Deployment stuck when trying to raise haproxy_global_maxconn

Issue

After bumping haproxy_global_maxconn to a very high value :

    tripleo::haproxy::haproxy_global_maxconn: 5120001

Deployment stuck at container-startup-config/step_3:

2024-01-17 12:17:21,246 p=193042 u=stack n=ansible | 2024-01-17 12:17:21.245192 | 8e903c10-915b-4180-a318-f9111cf44bf2 |   INCLUDED | /usr/share/ansible/roles/tripleo_container_manage/tasks/create.yml | controller-0
2024-01-17 12:17:21,307 p=193042 u=stack n=ansible | 2024-01-17 12:17:21.306905 | 525400aa-ff3f-f048-27fc-00000000b979 |       TASK | Create containers managed by Podman for /var/lib/tripleo-config/container-startup-config/step_3