dns/powerdns-recursor: update to 4.7.2

Changes: https://blog.powerdns.com/2022/08/23/security-advisory-2022-02-for-powerdns-recursor-up-to-and-including-4-5-9-4-6-2-4-7-1/

PR: 266153
MFH: 2022Q3 (security blanket)
Security: CVE-2022-37428
(cherry picked from commit 55aff0073566fe375fb0793bd9c99bf69031eed2)