NanoNNG 0.24.12

What's Changed

• fix reset retain flag for MQTT V3.1/V3.1.1 by @alvin1221 in #1466
• • FIX [mqtt_qos_db(SQLITE)] fix remove unused msg entity by @alvin1221 in #1465
• • FIX [nmq_mqtt] fix keepalive mechanism by @alvin1221 in #1463
• Fix handle no_local msg on MacOS cause send aio error by @alvin1221 in #1470
• Add encoding method for publish message by @alvin1221 in #1471
• Fix searching logic for topics starting with '$' by @alvin1221 in #1473
• avoid msg stall by @JaylinYu in #1477
• • FIX [mqtt_parser] out of bounds read by @JaylinYu in #1480
• • MDF [mqtt_parser] optimize & consolidate get_utf8_str by @JaylinYu in #1485
• fix regression bug from AI by @JaylinYu in #1486

Full Changelog: 0.24.11...0.24.12