Zabbix

.......PS. [ZBX-23475] fixed memory leak when SNMP walk to JSON preprocessing step fails due to parsing error

Merge in ZBX/zabbix from feature/ZBX-23475-6.5 to master

* commit '31c47aada2e2cf52473d52c0ac1476dfec63e1bd':
  .......... [ZBX-23477] reworded changelog
  .......... [ZBX-23477] fixed changelog
  .......PS. [ZBX-23475] fixed memory leak when error happens in snmp to walk