Reduce delay on OOOR delayed lookup.

A delay of 1000ms was causing frequent lookup timeouts e.g. on 9.9.9.9. We hypothesise that the delay causes an internal timeout in the server to fire. So reduce the delay to a smaller value that seems to leave the test working but reduces the incidence of timeouts.

We observe this still leaves timeouts on TLS connections to 9.9.9.9. These seem to occur only on TLS connections, and reducing the delay much further does not alter the observed behaviour. We guess there is something else going on there.

src/tools/getdns_server_mon.c

@@ -1587,7 +1587,7 @@ static exit_value test_out_of_order(struct test_info_s *test_info,
         /* A set of asynchronous queries to send. One exists. */
         const char GOOD_NAME[] = "getdnsapi.net";
         struct async_query async_queries[] = {
-                { "1000.delay.getdnsapi.net", 0, false },
+                { "400.delay.getdnsapi.net", 0, false },
                 { GOOD_NAME, 0, false }
         };
         unsigned NQUERIES = sizeof(async_queries) / sizeof(async_queries[0]);