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>

modules/private/manager.go

@@ -5,13 +5,13 @@
 package private
 
 import (
-	"encoding/json"
 	"fmt"
 	"net/http"
 	"net/url"
 	"time"
 
 	"code.gitea.io/gitea/modules/setting"
+	jsoniter "github.com/json-iterator/go"
 )
 
 // Shutdown calls the internal shutdown function
@@ -65,6 +65,7 @@ func FlushQueues(timeout time.Duration, nonBlocking bool) (int, string) {
 		req.SetTimeout(timeout+10*time.Second, timeout+10*time.Second)
 	}
 	req = req.Header("Content-Type", "application/json")
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	jsonBytes, _ := json.Marshal(FlushOptions{
 		Timeout:     timeout,
 		NonBlocking: nonBlocking,
@@ -151,6 +152,7 @@ func AddLogger(group, name, mode string, config map[string]interface{}) (int, st
 
 	req := newInternalRequest(reqURL, "POST")
 	req = req.Header("Content-Type", "application/json")
+	json := jsoniter.ConfigCompatibleWithStandardLibrary
 	jsonBytes, _ := json.Marshal(LoggerOptions{
 		Group:  group,
 		Name:   name,