[web/test] don't depend on iteration order on a set Fixes test under python -R ('pending_insert' in session data is a set, so we can't rely on any particular ordering). Related to #4959402.

etc/init.d
etc/cubicweb.d
etc/bash_completion.d
usr/bin
usr/share/doc/cubicweb-ctl
var/log/cubicweb
var/lib/cubicweb/backup
var/lib/cubicweb/instances