Upgrade dependencies

vendor/golang.org/x/net/proxy/direct.go

@@ -5,27 +5,14 @@
 package proxy
 
 import (
-	"context"
 	"net"
 )
 
 type direct struct{}
 
-// Direct implements Dialer by making network connections directly using net.Dial or net.DialContext.
+// Direct is a direct proxy: one that makes network connections directly.
 var Direct = direct{}
 
-var (
-	_ Dialer        = Direct
-	_ ContextDialer = Direct
-)
-
-// Dial directly invokes net.Dial with the supplied parameters.
 func (direct) Dial(network, addr string) (net.Conn, error) {
 	return net.Dial(network, addr)
 }
-
-// DialContext instantiates a net.Dialer and invokes its DialContext receiver with the supplied parameters.
-func (direct) DialContext(ctx context.Context, network, addr string) (net.Conn, error) {
-	var d net.Dialer
-	return d.DialContext(ctx, network, addr)
-}