dns/dnsdist: Update 1.9.8 => 1.9.9 (fixes CVE-2025-30194)
Release notes:
https://blog.powerdns.com/2025/04/29/powerdns-dnsdist-1.9.9-released
Changelog:
https://www.dnsdist.org/changelog.html#change-1.9.9
PR: 286282
Security: CVE-2025-30194
MFH: 2025Q2