Becouse i don't see now any problems with zabbix is good time to make this autogened

Autogen should work like php in slots LTS and current

• Zabbix 5.4
• Zabbix 5.0 LTS
• Zabbix 4.0 LTS

and now we can add masked new LTS zabbix 6.0

zabbix have official mirror on github
https://github.com/zabbix

Main packages (Zabbix 4.0 5.0 5.4) for stable reason shouldn't be rc
Devel version in my opinion dosen't need rc alpha etc restrictions

Aditional task
add zabbix-bash-completion
https://github.com/zabbix/zabbix-bash-completion