feat: gitea: vendor + fix heatmap

package/gitea/source/modules/proxyprotocol/util.go

@@ -0,0 +1,14 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package proxyprotocol
+
+import "io"
+
+var localHeader = append(v2Prefix, '\x20', '\x00', '\x00', '\x00', '\x00')
+
+// WriteLocalHeader will write the ProxyProtocol Header for a local connection to the provided writer
+func WriteLocalHeader(w io.Writer) error {
+	_, err := w.Write(localHeader)
+	return err
+}