build: update github.com/vishvananda/netlink to 1.3.0

This includes a breaking change:
acdc658b86
route.Dst is now a zero IPNet instead of nil

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

vendor/github.com/vishvananda/netlink/unix_diag.go

@@ -0,0 +1,27 @@
+package netlink
+
+// According to linux/include/uapi/linux/unix_diag.h
+const (
+	UNIX_DIAG_NAME = iota
+	UNIX_DIAG_VFS
+	UNIX_DIAG_PEER
+	UNIX_DIAG_ICONS
+	UNIX_DIAG_RQLEN
+	UNIX_DIAG_MEMINFO
+	UNIX_DIAG_SHUTDOWN
+	UNIX_DIAG_UID
+	UNIX_DIAG_MAX
+)
+
+type UnixDiagInfoResp struct {
+	DiagMsg  *UnixSocket
+	Name     *string
+	Peer     *uint32
+	Queue    *QueueInfo
+	Shutdown *uint8
+}
+
+type QueueInfo struct {
+	RQueue uint32
+	WQueue uint32
+}