DNSSEC support for encrypted DNS endpoints

[ammnt]

Hello,

please add DNSSEC and DNSSEC-validated cache (RFC8198) support for encrypted DNS endpoints: https://dnssec-analyzer.verisignlabs.com/adguard-dns.com https://dnssec-analyzer.verisignlabs.com/adguard-dns.io https://dnssec-analyzer.verisignlabs.com/adguard.com

More information here: https://tools.ietf.org/html/rfc8198

Thank you. Best regards!😳