Description of problem:

As per the deprecated warning below, dict type is deprecated and list should be used for users config.

cloud-init[962]: 2025-06-13 06:01:11,556 - lifecycle.py[DEPRECATED]: 'users' of type <class 'dict'> is deprecated in 22.2 and scheduled to be removed in 27.2. Use 'users' as a list.

To avoid the deprecated warning, we need to change the following value from {} to [] in the Cloudinit default template.

#cloud-config
hostname: <%= @host.name %>
fqdn: <%= @host %>
manage_etc_hosts: true
users: {}  <================
runcmd:
- | 

This deprecated warning also somehow causing the failure of cloud-init user-data provisioning for RHEL 9.6. For more information, please refer to the following Jira ticket.

https://issues.redhat.com/browse/RHEL-96831

QE Tracker for https://issues.redhat.com/browse/SAT-35290