fix: do not modify userInfo when marshaling

pkg/oidc/token_test.go

@@ -4,7 +4,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/muhlemmer/gu"
 	"github.com/stretchr/testify/assert"
 	"golang.org/x/text/language"
 	"gopkg.in/square/go-jose.v2"
@@ -182,7 +181,9 @@ func TestIDTokenClaims_SetUserInfo(t *testing.T) {
 		UserInfoEmail:   userInfoData.UserInfoEmail,
 		UserInfoPhone:   userInfoData.UserInfoPhone,
 		Address:         userInfoData.Address,
-		Claims:          gu.MapCopy(userInfoData.Claims),
+		Claims: map[string]interface{}{
+			"foo": "bar",
+		},
 	}
 
 	var got IDTokenClaims