System test on OpenBSD is unstable even when test parallelism is disabled. It failed nine times in the last three days, even with the TEST_PARALLEL_JOBS: 1 provision in place:
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3191613
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3191714
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3192154
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3192255
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3193111
- https://gitlab.isc.org/isc-projects/bind9/-/jobs/3193212
- https://gitlab.isc.org/isc-private/bind9/-/jobs/3193597
- https://gitlab.isc.org/isc-private/bind9/-/jobs/3192026
- https://gitlab.isc.org/isc-private/bind9/-/jobs/3191923
Also, d73eba57 is not needed anymore, and it is reverted.