Update dependencies

vendor/tailscale.com/net/netmon/defaultroute_bsd.go

@@ -0,0 +1,26 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+// Common code for FreeBSD. This might also work on other
+// BSD systems (e.g. OpenBSD) but has not been tested.
+// Not used on iOS or macOS. See defaultroute_darwin.go.
+
+//go:build freebsd
+
+package netmon
+
+import "net"
+
+func defaultRoute() (d DefaultRouteDetails, err error) {
+	idx, err := DefaultRouteInterfaceIndex()
+	if err != nil {
+		return d, err
+	}
+	iface, err := net.InterfaceByIndex(idx)
+	if err != nil {
+		return d, err
+	}
+	d.InterfaceName = iface.Name
+	d.InterfaceIndex = idx
+	return d, nil
+}