fix(*): Vendored project dependencies

vendor/code.gitea.io/sdk/gitea/agent_windows.go

@@ -0,0 +1,28 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+//go:build windows
+
+package gitea
+
+import (
+	"fmt"
+
+	"github.com/davidmz/go-pageant"
+	"golang.org/x/crypto/ssh/agent"
+)
+
+// hasAgent returns true if pageant is available
+func hasAgent() bool {
+	return pageant.Available()
+}
+
+// GetAgent returns a ssh agent
+func GetAgent() (agent.Agent, error) {
+	if !hasAgent() {
+		return nil, fmt.Errorf("no pageant available")
+	}
+
+	return pageant.New(), nil
+}