deps: update dependency zabbix/zabbix-docker to v6.0.28

This MR contains the following updates:

Package	Update	Change
zabbix/zabbix-docker	patch	6.0.27 -> 6.0.28

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Release Notes

zabbix/zabbix-docker (zabbix/zabbix-docker)

v6.0.28: Zabbix v6.0.28

Compare Source

Release Notes for Zabbix 6.0.28: https://www.zabbix.com/rn/rn6.0.28

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