Migrate to use jsoniter instead of encoding/json (#14841)

* Migrate to use jsoniter

* fix tests

* update gitea.com/go-chi/binding

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>

integrations/integration_test.go

@@ -8,7 +8,6 @@ import (
 	"bytes"
 	"context"
 	"database/sql"
-	"encoding/json"
 	"fmt"
 	"io"
 	"net/http"
@@ -36,6 +35,7 @@ import (
 	"code.gitea.io/gitea/routers/routes"
 
 	"github.com/PuerkitoBio/goquery"
+	jsoniter "github.com/json-iterator/go"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -376,6 +376,8 @@ func NewRequestWithValues(t testing.TB, method, urlStr string, values map[string
 
 func NewRequestWithJSON(t testing.TB, method, urlStr string, v interface{}) *http.Request {
 	t.Helper()
+
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	jsonBytes, err := json.Marshal(v)
 	assert.NoError(t, err)
 	req := NewRequestWithBody(t, method, urlStr, bytes.NewBuffer(jsonBytes))
@@ -453,6 +455,8 @@ func logUnexpectedResponse(t testing.TB, recorder *httptest.ResponseRecorder) {
 
 func DecodeJSON(t testing.TB, resp *httptest.ResponseRecorder, v interface{}) {
 	t.Helper()
+
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	decoder := json.NewDecoder(resp.Body)
 	assert.NoError(t, decoder.Decode(v))
 }