[NO TESTS NEEDED] Remove /tmp/containers-users-* files on reboot
Helps Fix
# /tmp/podman-run-* directory can contain content for Podman containers that have run
# for many days. This following line prevents systemd from removing this content.
x /tmp/podman-run-*
+x /tmp/containers-user-*
D! /run/podman 0700 root root
D! /var/lib/cni/networks
