test_xmlrpc: fix TestAutomemberFindOrphans.test_find_orphan_automember_rules
Test scenario:
- create a hostgroup
- create a host
- create an automember rule for the hostgroup with a condition fulfilled
by the host
- delete the hostgroup
- call automember-rebuild (1)
- call automember-find-orphans to remove the orphan automember group
- call automember-rebuild(2)
The test was expecting the first rebuild command to fail but this
assumption is not true if the DS version is >= 1.4.0.22 because of the
fix for https://pagure.io/389-ds-base/issue/50077
Modify the test so that it expects failure only when DS is older.
Fixes: https://pagure.io/freeipa/issue/7902
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>