attach_objtag doesn't work

zabbix ver = 7.4.11
nbxsync ver = 1.0.4
netbox ver = 4.5.10

I use default configurations of nbxsync, as :
```
    'attach_objtag': True,
    'objtag_type': 'nb_type',
    'objtag_id': 'nb_id'
```
but these tags cant be pushed to zabbix 

<img width="1730" height="303" alt="Image" src="https://github.com/user-attachments/assets/48bfdcca-3c8b-4723-82ec-8ab504ca8bc5" />