[SSSD] [sssd PR#947][comment] tests: fix race conditions in integration tests

[pbrezina]

URL: https://github.com/SSSD/sssd/pull/947
Title: #947: tests: fix race conditions in integration tests

pbrezina commented:
"""
Works. Let try another run.
"""

See the full comment at https://github.com/SSSD/sssd/pull/947#issuecomment-559811981