Commit c517bfea authored by Michał Kępień's avatar Michał Kępień

Fix dnstap installation conditions

dnstap dependencies are currently unconditionally included in Alpine
Linux images.  Only install them if the relevant Makefile variable is
set.

Tweak the condition for installing dnstap dependencies on CentOS so that
it matches its Debian counterpart.
parent 0be3b668
Pipeline #38587 skipped with stage