Fixes #39427 - Drop warn: false from Module Action - Ansible Default template

[adamruzicka]

Problem

The "Module Action - Ansible Default" job template passes warn: false to Ansible's shell module. The warn parameter was deprecated in ansible-core 2.12 and fully removed in ansible-core 2.14, where its presence causes a fatal error:

"Unsupported parameters for (ansible.legacy.command) module: warn."

This breaks all Ansible module actions for users on Ansible 2.14+.

Fix

Remove the args: warn: false block from the template. The warn: false was originally used to suppress Ansible's suggestion to use the dnf module instead of invoking dnf via shell. Since the warning mechanism itself was removed in 2.14, the parameter can simply be dropped:

• < 2.12: warn was never a concern; the shell module worked fine without it.
• 2.12–2.13: warn was deprecated but still accepted — omitting it means users may see the suggestion to use the dnf module directly, but it is harmless.
• 2.14+: warn is fully removed; omitting it is the correct behavior.

Related

Reported in https://community.theforeman.org/t/ansible-error-on-both-foreman-3-17-and-3-18/46806