Zabbix

...G...PS. [ZBX-23221] fixed memory leaks when using certificate-based encryption in Zabbix Agent 1 and Agent 2

Merge in ZBX/zabbix from feature/ZBX-23221-6.0 to release/6.0

* commit 'bafe63b1ffe1091cfdb83b507b0a80124a9f9841':
  .D........ [ZBX-23221] modified ChangeLog entry
  ...G...... [ZBX-23221] fixed memory leak when using certificate-based encryption with GnuTLS in Zabbix Agent 1
  ...G...... [ZBX-23221] fixed memory leak when using certificate-based encryption with OpenSSL in Zabbix Agent 1
  ...G...... [ZBX-23221] improved fix for memory leak when using encryption by certificate in Zabbix Agent 2
  .D........ [ZBX-23221] fixed ChangeLog
  ...G...... [ZBX-23221] fixed memory leak when using encryption by certificate in Zabbix Agent2

(cherry picked from commit 8e2df28c9b43a0eef065d107f2c0783a7ad8c2ad)
(cherry picked from commit c61c37fdc4032e44b377c507263bfb44f72e7d52)