Update arf.json

[CyberSecurityRepo]

Hello, It is a good idea to add the Deepinfo tool for domain name analysis (PassiveDNS, Whois Records, Subdomains, etc.). It has various features for the OSINT framework. You can explore its various features and functionalities in the documentation provided here: https://docs.deepinfo.com/docs/getting-started. Also, it offers a free trial: https://www.deepinfo.com/pricing/