Title: #947: tests: fix race conditions in integration tests
BTW I am not opposing your arguments, it is just not worth the time (and then again I
could have already written a patch instead of commenting). So feel free to take over and
submit different patch. I just want to have successful tests so PR CI is meaningful.
See the full comment at https://github.com/SSSD/sssd/pull/947#issuecomment-561266035