style: add import formatting

Signed-off-by: Xinwei Xiong(cubxxw-openim) <3293172751nss@gmail.com>

pkg/apiresp/gin.go

@@ -1,8 +1,9 @@
 package apiresp
 
 import (
-	"github.com/gin-gonic/gin"
 	"net/http"
+
+	"github.com/gin-gonic/gin"
 )
 
 func GinError(c *gin.Context, err error) {

pkg/apiresp/resp.go

@@ -1,8 +1,9 @@
 package apiresp
 
 import (
-	"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
 	"reflect"
+
+	"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
 )
 
 type ApiResponse struct {