Use forked Wireguard-go for custom bind (#823)

Update go version to 1.20
Use forked wireguard-go repo because of custom Bind implementation

management/server/management_test.go

@@ -371,8 +371,8 @@ var _ = Describe("Management service", func() {
 				for i := 0; i < additionalPeers; i++ {
 					key, _ := wgtypes.GenerateKey()
 					loginPeerWithValidSetupKey(serverPubKey, key, client)
-					rand.Seed(time.Now().UnixNano())
-					n := rand.Intn(200)
+					r := rand.New(rand.NewSource(time.Now().UnixNano()))
+					n := r.Intn(200)
 					time.Sleep(time.Duration(n) * time.Millisecond)
 				}