Fix thoretical possible memory leaks related to topic in error case#1521

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JuergenKosel wants to merge 2 commits intoeclipse-paho:developfrom JuergenKosel:fix-memleak-issue-1518

+8

Commits on Sep 3, 2024

Release memory of pack->topic together with pack witin error cases of MQTTPacket_publish()
JuergenKosel
committed

Commits on Sep 4, 2024

MQTTAsync_receiveThread() logs an error in case of unexpected and therefore unprocessed pack type
JuergenKosel
committed