Merge in DNS/adguard-home from 2609-dns-answer-string to master Updates #2609. Squashed commit of the following: commit 1922f90c50f47735d8025d862fbf60bcf707140f Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Thu Jan 28 15:19:11 2021 +0300 querylog: stricter typing commit 6ef73a45d822f77cfda44d8c093f272704d5afb6 Author: Ainar Garipov <A.Garipov@AdGuard.COM> Date: Thu Jan 28 15:04:06 2021 +0300 querylog: make answer actually a string