提交粮情协议2，完成

jiazx0107@163.com

2023-12-05 ebaaa34038ebda73630c9ab82465c5f76692b5c2

 src/main/java/com/fzzy/mqtt/MqttProviderConfig.java

@@ -37,6 +37,7 @@
        hostList.toArray(serverURIs);
        mqttConnectOptions.setServerURIs(serverURIs);
        mqttConnectOptions.setKeepAliveInterval(mqttProperties.getKeepAliveInterval());

        return mqttConnectOptions;
    }