Zabbix

........S. [ZBX-24574] fixed HA node flipping between standby and active states

Merge in ZBX/zabbix from feature/ZBX-24574-6.4 to release/6.4

* commit 'fd4d5ad0cd35269f7ffce3c0e54c764870862b24':
  ........S. [ZBX-24574] fixed HA node flipping between active and standby states