A follow-up from !5385 (comment 244821).
Alpine Linux image has OpenSSL 3.0 from the
edge repository to test
OpenSSL 3.0 support in the BIND 9
main branch. However, this breaks
the compilation of branches without OpenSSL 3.0 support (
Therefore OpenSSL deprecated declarations need to be suppressed with
Deprecation errors: https://gitlab.isc.org/isc-projects/bind9/-/jobs/2080993
Validation pipeline: https://gitlab.isc.org/isc-projects/bind9/-/pipelines/86478
Should be merged before https://gitlab.isc.org/isc-projects/images/-/merge_requests/140 is in.