Fix creating LLD rule

[varuzam]

This PR fixes such errors

$  ./prepare.py -v
Connected to Zabbix API v.7.0.5
...
Traceback (most recent call last):
  File "/home/user/work/zabbix-threat-control/./prepare.py", line 652, in <module>
    create_hosts()
  File "/home/user/work/zabbix-threat-control/./prepare.py", line 231, in create_hosts
    create_zbx_host(
  File "/home/user/work/zabbix-threat-control/./prepare.py", line 136, in create_zbx_host
    lld_id = zapi.discoveryrule.create(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/user/work/zabbix-threat-control/.venv/lib/python3.12/site-packages/pyzabbix/__init__.py", line 217, in fn
    return self.parent.do_request(
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/user/work/zabbix-threat-control/.venv/lib/python3.12/site-packages/pyzabbix/__init__.py", line 196, in do_request
    raise ZabbixAPIException(msg, response_json['error']['code'], error=response_json['error'])
pyzabbix.ZabbixAPIException: ('Error -32602: Invalid params., Invalid parameter "/1": unexpected parameter "units".', -32602)

and

...
 File "/home/user/work/zabbix-threat-control/.venv/lib/python3.12/site-packages/pyzabbix/__init__.py", line 196, in do_request
    raise ZabbixAPIException(msg, response_json['error']['code'], error=response_json['error'])
pyzabbix.ZabbixAPIException: ('Error -32602: Invalid params., Invalid parameter "/1": unexpected parameter "value_type".', -32602)