The VM job's DIND environment does not boot with systemd, so the systemd memory-limit test skips before starting a daemon. Native execution on Oracle Linux 8 reaches the test, but Docker requires cgroup v2 for the rootless systemd cgroup driver. Skip this unsupported combination while retaining rootful cgroup v1 and rootless cgroup v2 coverage. Assisted-by: Codex Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>