Update Vendors (#250)

update go min version

Update Vendors:
 * code.gitea.io/gitea-vet v0.2.0 -> v0.2.1
 * code.gitea.io/sdk/gitea v0.13.0 -> v0.13.1
 * github.com/AlecAivazis/survey v2.1.1 -> v2.2.2
 * github.com/adrg/xdg v0.2.1 -> v0.2.2
 * github.com/araddon/dateparse d820a6159ab1 -> 8aadafed4dc4
 * github.com/go-git/go-git v5.1.0 -> v5.2.0
 * github.com/muesli/termenv v0.7.2 -> v0.7.4
 * github.com/stretchr/testify v1.5.1 -> v1.6.1
 * github.com/urfave/cli v2.2.0 -> v2.3.0

Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/250
Reviewed-by: Andrew Thornton <art27@cantab.net>
Reviewed-by: mrsdizzie <info@mrsdizzie.com>
Co-Authored-By: 6543 <6543@noreply.gitea.io>
Co-Committed-By: 6543 <6543@noreply.gitea.io>

vendor/github.com/xanzy/ssh-agent/sshagent_windows.go

@@ -27,17 +27,40 @@ import (
 	"net"
 	"sync"
 
+	"github.com/Microsoft/go-winio"
 	"golang.org/x/crypto/ssh/agent"
 )
 
+const (
+	sshAgentPipe = `\\.\pipe\openssh-ssh-agent`
+)
+
+// Available returns true if Pageant is running
+func Available() bool {
+	if pageantWindow() != 0 {
+		return true
+	}
+	conn, err := winio.DialPipe(sshAgentPipe, nil)
+	if err != nil {
+		return false
+	}
+	conn.Close()
+	return true
+}
+
 // New returns a new agent.Agent and the (custom) connection it uses
 // to communicate with a running pagent.exe instance (see README.md)
 func New() (agent.Agent, net.Conn, error) {
-	if !Available() {
-		return nil, nil, errors.New("SSH agent requested but Pageant not running")
+	if pageantWindow() != 0 {
+		return agent.NewClient(&conn{}), nil, nil
 	}
-
-	return agent.NewClient(&conn{}), nil, nil
+	conn, err := winio.DialPipe(sshAgentPipe, nil)
+	if err != nil {
+		return nil, nil, errors.New(
+			"SSH agent requested, but could not detect Pageant or Windows native SSH agent",
+		)
+	}
+	return agent.NewClient(conn), nil, nil
 }
 
 type conn struct {