The corresponding patch has been merged in 2018 to kolla. I also checked, the ipmi plugin is included at least in the container image listed in fixed-in-version.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2020:2738