cherry-pick: all: upd dnsproxy, supp rfc 9250

Updates #4592.

Squashed commit of the following:

commit 1a80875d6aa7811d7d1d978f6fa8d558dec1ca87
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue May 24 19:28:27 2022 +0300

    all: upd dnsproxy, supp rfc 9250
This commit is contained in:
Ainar Garipov 2022-05-24 19:47:09 +03:00 committed by Ainar Garipov
parent bccbecc6ea
commit 254515f274

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