dns/dnsdist: Security update 2.0.6 => 2.0.7

While here, pet portfmt.

Changelog:
https://www.dnsdist.org/changelog.html#change-2.0.7
Security Advisory:
https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-09.html

PR: 296314
Reported by: Jordan Ostreff <jordan@ostreff.info>
Approved by: osa, vvd (Mentors, implicit)
MFH: 2026Q2
Security: CVE-2026-40011
Security: CVE-2026-42004
Security: CVE-2026-42005
Security: CVE-2026-40208
Security: CVE-2026-40209
Security: CVE-2026-40210
Security: CVE-2026-40211