The tool intelmqsetup wants to change the owner ROOT_DIR path.
If instructed to install IntelMQ in LSB-style paths, it's set
to the '/' resulting in changing the owner of system root to
intelmq.

This case is rare to happen (requires explixitly set INTELMQ_PATHS_NO_OPT
variable and using PIP package or directly the source code,
as the native package doesn't contain intelmqsetup), but it's
still potentially dangerous and can cause the system degradation
(e.g. prevents systemd-tmpfiles from working correctly).

Fixes: certtools#2354

Co-authored-by: Sebastian <[email protected]>