Pull request 2100: v0.107.42-rc

Squashed commit of the following:

commit 284190f748345c7556e60b67f051ec5f6f080948
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Wed Dec 6 19:36:00 2023 +0300

    all: sync with master; upd chlog

internal/filtering/filtering.go

@@ -98,6 +98,8 @@ type Config struct {
 
 	// EtcHosts is a container of IP-hostname pairs taken from the operating
 	// system configuration files (e.g. /etc/hosts).
+	//
+	// TODO(e.burkov):  Move it to dnsforward entirely.
 	EtcHosts *aghnet.HostsContainer `yaml:"-"`
 
 	// Called when the configuration is changed by HTTP request