ipatests: fix test_ipactl_scenario_check
    
    The test is comparing the PID of services before and after
    calling ipactl start, expecting to have the same value.
    It should not compare the pid for ipa-dnskeysyncd as this service
    is automatically restarted upon failure.
    
    Fixes: https://pagure.io/freeipa/issue/9415
    
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>