Increase ssh retries for CI scaleup

inventory/dynamic/aws/ansible.cfg

@@ -39,7 +39,7 @@ unparsed_is_failed=true
 
 # Additional ssh options for OpenShift Ansible
 [ssh_connection]
-retries = 10
+retries = 15
 pipelining = True
 ssh_args = -o ControlMaster=auto -o ControlPersist=600s
 timeout = 10