Fix decoding of []byte type

[preethamrn]

This is very similar to the fix here: 8628848

Although the earlier fix applies for Unmarshal, it doesn't fix the case where a user uses NewDecoder(r).Decode(&res)

Here's a sample test that fails

package json

import (
	"bytes"
	"encoding/json"
	"strings"
	"testing"

	goccy "github.com/goccy/go-json"
	"github.com/stretchr/testify/assert"
)

type structure struct {
	InnerBytes []byte `json:"inner_bytes"`
}

func Test_json_decode(t *testing.T) {
	rawData := `{"inner_bytes":"bG93ZXI="}`
	var resNative structure
	var resGoccy structure
	json.NewDecoder(bytes.NewBufferString(rawData)).Decode(&resNative)
	goccy.NewDecoder(bytes.NewBufferString(rawData)).Decode(&resGoccy)
	assert.Equal(t, []byte("lower"), resNative.InnerBytes)
	assert.Equal(t, []byte("lower"), resGoccy.InnerBytes)
}

[codecov-commenter]

Codecov Report

Merging #258 (2aeb176) into master (397a4e4) will increase coverage by 0.00%.
The diff coverage is 66.66%.

@@           Coverage Diff           @@
##           master     #258   +/-   ##
=======================================
  Coverage   80.97%   80.98%           
=======================================
  Files          47       47           
  Lines       14763    14764    +1     
=======================================
+ Hits        11955    11956    +1     
  Misses       2255     2255           
  Partials      553      553           

[goccy]

Thank you for the great PR ! LGTM !