cherry-pick: 3978 Query Log ECS

Merge in DNS/adguard-home from 3978-ecs-ip to master

Updates #3978.

Squashed commit of the following:

commit 915b94afa4b6d90169f73d4fa171bc81bcc267a7
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Mar 3 17:46:40 2022 +0300

    all: rm dot

commit 2dd2ed081b199de7e5d8269dae5d08d53b5eea6d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Mar 3 17:42:45 2022 +0300

    client: imp txt

commit 8d5a23df739f0b650f9f3870141fd83e8fa0c1e0
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Mar 3 14:36:04 2022 +0300

    client: imp text

commit 69c856749a20144822ef3f1f67c5f3e3c24f5374
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Mar 3 14:24:56 2022 +0300

    client: imp description

commit cd0150128ad29d1874492735a5d621c0803ad0bd
Merge: 28181fbc e0b557ed
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 2 21:02:16 2022 +0300

    Merge branch 'master' into 3978-ecs-ip

commit 28181fbc79eb22e7fd13cbd1d5a3c040af9fa2a4
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Wed Mar 2 20:45:50 2022 +0300

    client: show ecs

commit cdc5e7f8c4155b798426d815eed0da547ef6efb7
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Feb 17 20:15:56 2022 +0300

    openapi: fix milestone

commit 404d6d822fa1ba4ed4cd41d92d4c1b805342fe55
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Feb 17 20:08:21 2022 +0300

    all: fix deps, docs

commit 8fb80526f1e251d3b7b193c53a4a6dee0e22c145
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Feb 17 19:39:34 2022 +0300

    all: add querylog ecs backend

openapi/CHANGELOG.md

@@ -2,6 +2,21 @@
 
 <!-- TODO(a.garipov): Reformat in accordance with the KeepAChangelog spec. -->
 
+## v0.108.0: API changes
+
+### The new possible status code in `/install/configure` response.
+
+* The new status code `422 Unprocessable Entity` in the response for
+  `POST /install/configure` which means that the specified password does not
+  meet the strength requirements.
+
+## v0.107.7: API changes
+
+### The new optional field `"ecs"` in `QueryLogItem`
+
+* The new optional field `"ecs"` in `GET /control/querylog` contains the IP
+  network from an EDNS Client-Subnet option from the request message if any.
+
 ## v0.107.3: API changes
 
 ### The new field `"version"` in `AddressesInfo`

openapi/openapi.yaml

@@ -1902,6 +1902,12 @@
           - 'doq'
           - 'dnscrypt'
           - ''
+        'ecs':
+          'type': 'string'
+          'example': '192.168.0.0/16'
+          'description': >
+            The IP network defined by an EDNS Client-Subnet option in the
+            request message if any.
         'elapsedMs':
           'type': 'string'
           'example': '54.023928'