ci(ansible): replace stdout_callback with result_format

The 'community.general.yaml' callback plugin has been removed. The plugin has been superseded by the option `result_format=yaml` in callback plugin ansible.builtin.default
from ansible-core 2.13 onwards. This feature was removed from collection 'community.general' version 12.0.0.

Author: Tommytrg

ansible/ansible.cfg

@@ -3,7 +3,7 @@ inventory = inventory.ini
 remote_user = ubuntu
 private_key_file = key.pem
 host_key_checking = False
-stdout_callback = yaml
+result_format = yaml
 force_color = True
 
 [privilege_escalation]