Ensure expiry_interval expired in testcase

test/emqx_msg_expiry_interval_SUITE.erl

@@ -55,7 +55,7 @@ message_expiry_interval_exipred(ClientA, QoS) ->
 	ct:pal("~p ~p", [?FUNCTION_NAME, QoS]),
 	%% publish to t/a and waiting for the message expired
 	emqtt:publish(ClientA, <<"t/a">>, #{'Message-Expiry-Interval' => 1}, <<"this will be purged in 1s">>, [{qos, QoS}]),
-	ct:sleep(1000),
+	ct:sleep(1500),
 
 	%% resume the session for client-b
 	{ok, ClientB1} = emqtt:start_link([{proto_ver,v5}, {client_id, <<"client-b">>}, {clean_start, false},{properties, #{'Session-Expiry-Interval' => 360}}]),