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/dhcpsvc/errors.go

@@ -0,0 +1,11 @@
+package dhcpsvc
+
+import "github.com/AdguardTeam/golibs/errors"
+
+const (
+	// errNilConfig is returned when a nil config met.
+	errNilConfig errors.Error = "config is nil"
+
+	// errNoInterfaces is returned when no interfaces found in configuration.
+	errNoInterfaces errors.Error = "no interfaces specified"
+)