Zabbix

.......PS. [ZBX-23668] added overflow check when converting string variant to ui64

Merge in ZBX/zabbix from feature/ZBX-23668-6.5 to master

* commit '06fd4ad9815387ae6e25d7ffc2e1feb20c5cd6a5':
  .......... [ZBX-23668] added changelog
  .......PS. [ZBX-23668] fixed code style
  .......PS. [ZBX-23668] fixed overflow check
  .......PS. [ZBX-23668] added overflow check when converting string variant to ui64