tests_: Allow integration.py to run systemctl

It needs to do this to start and stop various Rhosydd services. We allow
systemctl to run unconfined because it has no profile, and adding all
the profile rules for the various things it does would bloat the
integration.py profile. It’s only an integration test.

Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Signed-off-by: Philip Withnall <philip.withnall@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D3505

tests/usr.lib.installed-tests.rhosydd.integration.py.in

@@ -22,4 +22,8 @@
 
   # Talking to the Rhosydd daemon
   dbus (send, receive) bus=system peer=(label=/usr/bin/rhosydd),
+
+  # Running systemctl to query process status;
+  # systemctl has no profile, so switch to unconfined
+  /bin/systemctl mrpux,
 }