testing: Migrated ikev2 scenarios to new default plugins

testing/tests/ikev2/crl-from-cache/hosts/moon/etc/swanctl/swanctl.conf

@@ -14,8 +14,10 @@ connections {
       children {
          net {
             local_ts  = 10.1.0.0/16 
-         }
+            esp_proposals = aes128gcm128-modp3072
+        }
       }
       version = 2
+      proposals = aes128-sha256-modp3072
    }
 }