Zabbix

...G...... [ZBX-22434] fixed race condition when starting Zabbix agent 2 with loadable plugins

* commit '47bd26756cd39b41b3eba2009621a44b6160bc30':
  ...G...... [ZBX-22434] added change log
  ...G...... [ZBX-22434] code clean-up
  ...G...... [ZBX-22434] fixed EOF error handle on plugin connection close for Zabbix agent 2
  ...G...... [ZBX-22434] fixed race condition when starting Zabbix agent 2 with loadable plugins

(cherry picked from commit 70e297a55b0564d9db914c11af5a40a9f8384e9a)