fix: dev: Post [CVE-2024-12705] Performance Drop Fixes

This merge request fixes a [performance drop](https://gitlab.isc.org/isc-projects/bind9/-/pipelines/216728) after merging the fixes for #4795, in particular in 9.18.

The MR [fixes the problem](https://gitlab.isc.org/isc-projects/bind9/-/pipelines/219825) without affecting performance for the newer versions, in particular for [the development version](https://gitlab.isc.org/isc-projects/bind9/-/pipelines/220619).

Merge branch 'artem-doh-performance-drop' into 'main'

See merge request isc-projects/bind9!10109