Merge branch 'errcode' of github.com:OpenIMSDK/Open-IM-Server into errcode

pkg/utils/utils_v2.go

@@ -1,6 +1,7 @@
 package utils
 
 import (
+	"encoding/json"
 	"sort"
 )
 
@@ -269,6 +270,11 @@ func If[T any](isa bool, a, b T) T {
 	return b
 }
 
+func UniqueJoin(s ...string) string {
+	data, _ := json.Marshal(s)
+	return string(data)
+}
+
 type sortSlice[E any] struct {
 	ts []E
 	fn func(a, b E) bool