Update dependencies (#5518)

vendor/gopkg.in/src-d/go-git.v4/plumbing/transport/http/common.go

@@ -139,7 +139,7 @@ func (s *session) ApplyAuthToRequest(req *http.Request) {
 		return
 	}
 
-	s.auth.setAuth(req)
+	s.auth.SetAuth(req)
 }
 
 func (s *session) ModifyEndpointIfRedirect(res *http.Response) {
@@ -175,7 +175,7 @@ func (*session) Close() error {
 // AuthMethod is concrete implementation of common.AuthMethod for HTTP services
 type AuthMethod interface {
 	transport.AuthMethod
-	setAuth(r *http.Request)
+	SetAuth(r *http.Request)
 }
 
 func basicAuthFromEndpoint(ep *transport.Endpoint) *BasicAuth {
@@ -192,7 +192,7 @@ type BasicAuth struct {
 	Username, Password string
 }
 
-func (a *BasicAuth) setAuth(r *http.Request) {
+func (a *BasicAuth) SetAuth(r *http.Request) {
 	if a == nil {
 		return
 	}
@@ -226,7 +226,7 @@ type TokenAuth struct {
 	Token string
 }
 
-func (a *TokenAuth) setAuth(r *http.Request) {
+func (a *TokenAuth) SetAuth(r *http.Request) {
 	if a == nil {
 		return
 	}

vendor/gopkg.in/src-d/go-git.v4/plumbing/transport/server/server.go

@@ -286,11 +286,6 @@ func (s *rpSession) updateReferences(req *packp.ReferenceUpdateRequest) {
 				continue
 			}
 
-			if err != nil {
-				s.setStatus(cmd.Name, err)
-				continue
-			}
-
 			ref := plumbing.NewHashReference(cmd.Name, cmd.New)
 			err := s.storer.SetReference(ref)
 			s.setStatus(cmd.Name, err)

vendor/gopkg.in/src-d/go-git.v4/plumbing/transport/ssh/auth_method.go

@@ -61,7 +61,7 @@ func (a *KeyboardInteractive) ClientConfig() (*ssh.ClientConfig, error) {
 	return a.SetHostKeyCallback(&ssh.ClientConfig{
 		User: a.User,
 		Auth: []ssh.AuthMethod{
-			ssh.KeyboardInteractiveChallenge(a.Challenge),
+			a.Challenge,
 		},
 	})
 }

vendor/gopkg.in/src-d/go-git.v4/plumbing/transport/ssh/common.go

@@ -2,6 +2,7 @@
 package ssh
 
 import (
+	"context"
 	"fmt"
 	"reflect"
 	"strconv"
@@ -11,6 +12,7 @@ import (
 
 	"github.com/kevinburke/ssh_config"
 	"golang.org/x/crypto/ssh"
+	"golang.org/x/net/proxy"
 )
 
 // DefaultClient is the default SSH client.
@@ -115,7 +117,7 @@ func (c *command) connect() error {
 
 	overrideConfig(c.config, config)
 
-	c.client, err = ssh.Dial("tcp", c.getHostWithPort(), config)
+	c.client, err = dial("tcp", c.getHostWithPort(), config)
 	if err != nil {
 		return err
 	}
@@ -130,6 +132,29 @@ func (c *command) connect() error {
 	return nil
 }
 
+func dial(network, addr string, config *ssh.ClientConfig) (*ssh.Client, error) {
+	var (
+		ctx    = context.Background()
+		cancel context.CancelFunc
+	)
+	if config.Timeout > 0 {
+		ctx, cancel = context.WithTimeout(ctx, config.Timeout)
+	} else {
+		ctx, cancel = context.WithCancel(ctx)
+	}
+	defer cancel()
+
+	conn, err := proxy.Dial(ctx, network, addr)
+	if err != nil {
+		return nil, err
+	}
+	c, chans, reqs, err := ssh.NewClientConn(conn, addr, config)
+	if err != nil {
+		return nil, err
+	}
+	return ssh.NewClient(c, chans, reqs), nil
+}
+
 func (c *command) getHostWithPort() string {
 	if addr, found := c.doGetHostWithPortFromSSHConfig(); found {
 		return addr