Pull request: decr optimistic ttl

Merge in DNS/adguard-home from 2145-optimistic-ttl to master

Updates #2145.

Squashed commit of the following:

commit 81e5aba
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 9 18:34:50 2022 +0500

    all: upd proxy

CHANGELOG.md

@@ -27,6 +27,8 @@ and this project adheres to
 
 ### Changed
 
+- The TTL of responses served from the optimistic cache is now lowered to 10
+  seconds.
 - Domain-specific private reverse DNS upstream servers are now validated to
   allow only `*.in-addr.arpa` and `*.ip6.arpa` domains pointing to
   locally-served networks ([#3381]).  **Note:**  If you already have invalid
@@ -76,6 +78,7 @@ In this release, the schema version has changed from 12 to 13.
 
 ### Security
 
+- `User-Agent` HTTP header removed from outcoming DNS-over-HTTPS requests.
 - Enforced password strength policy ([#3503]).
 - Weaker cipher suites that use the CBC (cipher block chaining) mode of
   operation have been disabled ([#2993]).

go.mod

@@ -3,7 +3,7 @@ module github.com/AdguardTeam/AdGuardHome
 go 1.17
 
 require (
-	github.com/AdguardTeam/dnsproxy v0.41.3
+	github.com/AdguardTeam/dnsproxy v0.41.4
 	github.com/AdguardTeam/golibs v0.10.6
 	github.com/AdguardTeam/urlfilter v0.15.2
 	github.com/NYTimes/gziphandler v1.1.1

go.sum

@@ -7,8 +7,8 @@ dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBr
 dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
-github.com/AdguardTeam/dnsproxy v0.41.3 h1:FJnIf2pHaABUjAvB0P79nIXN5sBAvsUf2368NNw50+s=
-github.com/AdguardTeam/dnsproxy v0.41.3/go.mod h1:GCdEbTw683vBqksJIccPSYzBg2yIFbRiDnXltyIinug=
+github.com/AdguardTeam/dnsproxy v0.41.4 h1:zA8BJmWBkSL5kp4b8CblQRgIrLGzJ4IUGQ7tA1255Cw=
+github.com/AdguardTeam/dnsproxy v0.41.4/go.mod h1:GCdEbTw683vBqksJIccPSYzBg2yIFbRiDnXltyIinug=
 github.com/AdguardTeam/golibs v0.4.0/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
 github.com/AdguardTeam/golibs v0.4.2/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
 github.com/AdguardTeam/golibs v0.10.4/go.mod h1:rSfQRGHIdgfxriDDNgNJ7HmE5zRoURq8R+VdR81Zuzw=