Zabbix

.......PS. [ZBX-26006] made PSK comparison case-sensitive during autoregistration

Merge in ZBX/zabbix from feature/ZBX-26006-6.0 to release/6.0

* commit '9390f7addd57d129b1391999291837dea3c3e01e':
  .......PS. [ZBX-26006] removed integration test due to missing optag table
  .......PS. [ZBX-26006] updated license
  .......PS. [ZBX-26006] made PSK comparison case-sensitive during autoregistration