component/firewalld: fix compilation on OBS

OBS system is using user "abuild" to build the package rendering the
compilation broken.

Simply accept the 2 last commands to fail on Theia.

component/firewalld/buildout.cfg

@@ -117,6 +117,7 @@ python = ${buildout:bin-directory}/${firewalld-eggs:interpreter}
 stop-on-error = True
 command =
   set -e
+  set -x
   sed -i 's#python3#${:python}#' ${firewalld:location}/bin/firewall-applet
   sed -i 's#python3#${:python}#' ${firewalld:location}/bin/firewall-cmd
   sed -i 's#python3#${:python}#' ${firewalld:location}/bin/firewall-config
@@ -139,10 +140,9 @@ command =
   echo -n '#!/bin/sh\nLD_LIBRARY_PATH=${nftables:location}/lib exec ${firewalld:location}/${firewalld:sbin-dir}/firewalld "$@"' > ${firewalld:location}/sbin/firewalld
   chmod a+x ${firewalld:location}/sbin/firewalld
 
-  # no need to patch dbus if not in top level compilation
-  [ "$(stat -c '%U' ${dbus:location}/share/dbus-1/system.conf)" = "slapsoft" ] || exit 0
-  sed -i 's#<user>messagebus</user>#<user>slapsoft</user>#' ${dbus:location}/share/dbus-1/system.conf
-  cp -f ${firewalld:location}/share/dbus-1/system.d/FirewallD.conf ${dbus:location}/share/dbus-1/system.d/
+  # the following 2 commands may fail in a Theia environment because we don't have write permission on a shared folder
+  sed -i 's#<user>messagebus</user>#<user>slapsoft</user>#' ${dbus:location}/share/dbus-1/system.conf || true
+  cp -f ${firewalld:location}/share/dbus-1/system.d/FirewallD.conf ${dbus:location}/share/dbus-1/system.d/ || true
 
 update-command = ${:command}
 stop-on-error = true