docs: correct the chinese label for the `socket_nodelay` field

lib-ee/emqx_ee_bridge/i18n/emqx_ee_bridge_kafka.conf

@@ -224,7 +224,7 @@ emqx_ee_bridge_kafka {
         }
         label {
             en: "No Delay"
-            zh: "是否延迟发送"
+            zh: "是否关闭延迟发送"
         }
     }
     kafka_topic {