MQTT: fix build error when publishing json topic.
--- a/mqtt/mqtt_template.c Thu Jan 16 14:52:49 2025 +0100
+++ b/mqtt/mqtt_template.c Thu Jan 16 15:30:35 2025 +0100
@@ -405,7 +405,7 @@
#define PUBLISH_JSON(Topic, QoS, C_type, c_loc_name, Retained) \
int res = json_gen_##c_loc_name(&MQTT_##c_loc_name##_buf); \
if(res == 0) {{ \
- _PUBLISH(Topic, QoS, json_out_len, json_out_buf, Retained) \
+ _PUBLISH(#Topic, QoS, json_out_len, json_out_buf, Retained) \
}}
#define INIT_PUBLICATION(encoding, Topic, QoS, C_type, c_loc_name, Retained) \