Manpages of src:zabbix in Debian bullseye-backports

• zabbix-java-gateway.jar(1)
• zabbix_agent2(8)
• zabbix_agentd(8)
• zabbix_get(1)
• zabbix_proxy(8)
• zabbix_sender(1)
• zabbix_server(8)
• zabbix_web_service(8)