fix(git): add vendor in .gitignore

vendor/github.com/gin-gonic/gin/render/msgpack.go

@@ -1,42 +0,0 @@
-// Copyright 2017 Manu Martinez-Almeida.  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 !nomsgpack
-// +build !nomsgpack
-
-package render
-
-import (
-	"net/http"
-
-	"github.com/ugorji/go/codec"
-)
-
-var (
-	_ Render = MsgPack{}
-)
-
-// MsgPack contains the given interface object.
-type MsgPack struct {
-	Data interface{}
-}
-
-var msgpackContentType = []string{"application/msgpack; charset=utf-8"}
-
-// WriteContentType (MsgPack) writes MsgPack ContentType.
-func (r MsgPack) WriteContentType(w http.ResponseWriter) {
-	writeContentType(w, msgpackContentType)
-}
-
-// Render (MsgPack) encodes the given interface object and writes data with custom ContentType.
-func (r MsgPack) Render(w http.ResponseWriter) error {
-	return WriteMsgPack(w, r.Data)
-}
-
-// WriteMsgPack writes MsgPack ContentType and encodes the given interface object.
-func WriteMsgPack(w http.ResponseWriter, obj interface{}) error {
-	writeContentType(w, msgpackContentType)
-	var mh codec.MsgpackHandle
-	return codec.NewEncoder(w, &mh).Encode(obj)
-}