Allow adding new files to an empty repo (#24164)

![image](https://user-images.githubusercontent.com/2114189/232561612-2bfcfd0a-fc04-47ba-965f-5d0bcea46c54.png)

modules/indexer/stats/queue.go

@@ -10,6 +10,7 @@ import (
 	"code.gitea.io/gitea/modules/graceful"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/queue"
+	"code.gitea.io/gitea/modules/setting"
 )
 
 // statsQueue represents a queue to handle repository stats updates
@@ -20,7 +21,9 @@ func handle(data ...queue.Data) []queue.Data {
 	for _, datum := range data {
 		opts := datum.(int64)
 		if err := indexer.Index(opts); err != nil {
-			log.Error("stats queue indexer.Index(%d) failed: %v", opts, err)
+			if !setting.IsInTesting {
+				log.Error("stats queue indexer.Index(%d) failed: %v", opts, err)
+			}
 		}
 	}
 	return nil