testing: Converted sql to systemd

testing/tests/sql/net2net-cert/posttest.dat

@@ -1,4 +1,4 @@
-moon::service charon stop 2> /dev/null
-sun::service charon stop 2> /dev/null
+moon::systemctl stop strongswan-swanctl
+sun::systemctl stop strongswan-swanctl
 moon::iptables-restore < /etc/iptables.flush
 sun::iptables-restore < /etc/iptables.flush