Zabbix

.......PS. [ZBX-21069] fixed snmp max_vars not backing off when generr is received

Merge in ZBX/zabbix from feature/ZBX-21069-6.0 to release/6.0

* commit 'e599ef82c86f06ef813fb868526755de7ba47e6d':
  .......... [ZBX-21069] added changelog
  .......PS. [ZBX-21069] fixed snmp max_vars not backing off when generr is received