Draft: supply on-wire error code for NSEC3 iteration limit
https://www.rfc-editor.org/rfc/rfc9276.html#section-6
$ kdig +edns rezervujstul.cz NULL
;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 17221
;; Flags: qr rd ra; QUERY: 1; ANSWER: 0; AUTHORITY: 4; ADDITIONAL: 1
;; EDNS PSEUDOSECTION:
;; Version: 0; flags: do; UDP size: 1232 B; ext-rcode: NOERROR
;; EDE: 27 (Unsupported NSEC3 Iterations Value): '5JBS'
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Edited by Oto Šťáva