Zabbix

.......... [DEV-4072] added more cases for top hosts widget tests

Merge in ZBX/zabbix from feature/DEV-4072-7.3 to master

* commit 'e8cad0811a66b822daea1b7e7e0e719f38a6f80c':
  .......... [DEV-4072] added comment
  .......... [DEV-4072] added more cases for top hosts widget tests