testing: Change sql scenarios to swanctl

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

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