build(deps): bump github.com/shamaton/msgpack/v2 from 2.1.1 to 2.2.0

Bumps [github.com/shamaton/msgpack/v2](https://github.com/shamaton/msgpack) from 2.1.1 to 2.2.0.
- [Release notes](https://github.com/shamaton/msgpack/releases)
- [Commits](https://github.com/shamaton/msgpack/compare/v2.1.1...v2.2.0)

---
updated-dependencies:
- dependency-name: github.com/shamaton/msgpack/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/shamaton/msgpack/v2/internal/common/buffer.go

@@ -0,0 +1,63 @@
+package common
+
+import (
+	"io"
+	"sync"
+)
+
+type Buffer struct {
+	Data   []byte
+	B1     []byte
+	B2     []byte
+	B4     []byte
+	B8     []byte
+	B16    []byte
+	offset int
+}
+
+func (b *Buffer) Write(w io.Writer, vs ...byte) error {
+	if len(b.Data) < b.offset+len(vs) {
+		_, err := w.Write(b.Data[:b.offset])
+		if err != nil {
+			return err
+		}
+		if len(b.Data) < len(vs) {
+			b.Data = append(b.Data, make([]byte, len(vs)-len(b.Data))...)
+		}
+		b.offset = 0
+	}
+	for i := range vs {
+		b.Data[b.offset+i] = vs[i]
+	}
+	b.offset += len(vs)
+	return nil
+}
+
+func (b *Buffer) Flush(w io.Writer) error {
+	_, err := w.Write(b.Data[:b.offset])
+	return err
+}
+
+var bufPool = sync.Pool{
+	New: func() interface{} {
+		data := make([]byte, 64)
+		return &Buffer{
+			Data: data,
+			B1:   data[:1],
+			B2:   data[:2],
+			B4:   data[:4],
+			B8:   data[:8],
+			B16:  data[:16],
+		}
+	},
+}
+
+func GetBuffer() *Buffer {
+	buf := bufPool.Get().(*Buffer)
+	buf.offset = 0
+	return buf
+}
+
+func PutBuffer(buf *Buffer) {
+	bufPool.Put(buf)
+}