Exclude domains that resolve to a local ipv6 from Invalid DNS answer evidence

e.g
```
"Description": "Invalid DNS answer. The DNS query desktop-1234 was resolved to the private IP: 192.168.1.131 threat level: info.",
  "Source": [
    {
      "IP": "192.168.1.180"
    }
  ],
  "Target": [
    {
      "Hostname": "desktop-1234"
    }
  ],
```