[SSSD] [sssd PR#796][comment] ci: enable sssd-ci for 1-16 branch

[pbrezina]

URL: https://github.com/SSSD/sssd/pull/796
Title: #796: ci: enable sssd-ci for 1-16 branch

pbrezina commented:
"""
Thank you for the hint. It turned out that I did not rebase it on top of current sssd-1-16 so this patch was missing.
"""

See the full comment at https://github.com/SSSD/sssd/pull/796#issuecomment-478510287