Zabbix

...G...PS. [ZBX-26080] fixed old file descriptors being hold when external log rotation is used

Merge in ZBX/zabbix from feature/ZBX-26080-7.0 to release/7.0

* commit 'f4ea920da1d593155f58211bc8002172d4924e3d':
  .......... [ZBX-26080] added changelog
  .......PS. [ZBX-26080] fixed pg manager
  .......PS. [ZBX-26080] fixed include
  ...G...... [ZBX-26080] removed redundant changes
  ...G...... [ZBX-26080] removed redundant changes
  ...G...... [ZBX-26080] removed unused function
  ...G...... [ZBX-26080] ported alerter and ha manager changes
  ...G...... [ZBX-26080] fixed main loop of agent
  ...G...... [ZBX-26080] fixed main loop of agent
  ...G...... [ZBX-26080] reverted agent main loop change
  ...G...PS. [ZBX-26080] fixed holding of old file descriptors when external log rotation is used