ipatests: introduce wait_for_replication in test_rolecheck_Trust
Test was randomly failing if the query for the server role is
executed before the replication had time to replicate the
changes on cn=adtrust agents,cn=sysaccounts,cn=etc,dc=ipa,dc=test,
as the server role is read using this entry.
related: https://pagure.io/freeipa/issue/8553
Signed-off-by: Mohammad Rizwan <myusuf@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>