Zabbix

...G...... [ZBX-20993] fixed Zabbix agent 2 MQTT plugin clientID to be generated by strict requirements

* commit 'e92b5cdf5fa181dbcc8ce18edfd21e8a17207935':
  ...G...... [ZBX-20993] removed redundand test cases
  ...G...... [ZBX-20993] fixed PR comments
  .......... [ZBX-20993] added change log
  ...G...... [ZBX-20993] fixed Zabbix agent 2 MQTT plugin clientID to be generated by strict requirements