Pull request 2070: 4923 gopacket DHCP vol.4

Merge in DNS/adguard-home from 4923-gopacket-dhcp-vol.4 to master

Updates #4923.

Squashed commit of the following:

commit 4b87258c70ac98b2abb1ac95f7e916e244b3cd08
Merge: 61458864f 9b91a8740
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Nov 16 14:05:34 2023 +0300

    Merge branch 'master' into 4923-gopacket-dhcp-vol.4

commit 61458864f3df7a027e65060a5f0fb516cc7911a7
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Nov 15 18:48:40 2023 +0300

    all: imp code

commit 506a0ab81e76beebb900f86580577563b471e4e2
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Nov 14 15:59:56 2023 +0300

    all: cleanup moving lease

commit 8d218b732662ac4308ed09d28c1bf9f65906d47c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Nov 13 18:13:39 2023 +0300

    all: rm old leases type

internal/dhcpd/dhcpd_unix_test.go

@@ -9,6 +9,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/AdGuardHome/internal/dhcpsvc"
 	"github.com/AdguardTeam/golibs/testutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -44,7 +45,7 @@ func TestDB(t *testing.T) {
 	s.srv6, err = v6Create(V6ServerConf{})
 	require.NoError(t, err)
 
-	leases := []*Lease{{
+	leases := []*dhcpsvc.Lease{{
 		Expiry:   time.Now().Add(time.Hour),
 		Hostname: "static-1.local",
 		HWAddr:   net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},