fix: recursive requisite rabbitmqadmin with latest salt builds

[sylvainfaivre]

(Work In Progress)

See #139 for up to date CI results without any code change.

Eight different OSes fail with :

       ----------
                 ID: rabbitmq-config-plugins-rabbit-rabbitmqadmin-install
           Function: cmd.run
               Name: curl -k -L http://127.0.0.1:15672/cli/rabbitmqadmin -o /usr/local/sbin/rabbitmqadmin
             Result: False
            Comment: Recursive requisite found
            Changes:   
       ----------

I think it is caused by a change in Salt's code for detecting recursive requisites.