datamodel: new permission check is unreliable?
File "/usr/lib/python3/dist-packages/knot_resolver/datamodel/types/files.py", line 171, in accessible
b_groups = os.getgrouplist(os.getlogin(), user_gid)
^^^^^^^^^^^^^
OSError: [Errno 25] Inappropriate ioctl for device
On Ubuntu 24.04, as reported on the gitter chat. This code was introduced in !1595 (merged)