Merge in DNS/adguard-home from 4074-upstream-test to master
Updates #4074.
Squashed commit of the following:
commit 0de155b1e175a892b259791ff6d6e6f351bcfcf2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date: Wed Jan 12 19:20:01 2022 +0500
dnsforward: fix upstream test