Fix the wrong review requested number mentioned by #18808 . Fix #18808 Before: ![ksnip_20230829-140750](https://github.com/go-gitea/gitea/assets/70063547/0af2055b-6f16-4699-a944-c7186831d7f9) After: ![ksnip_20230829-141817](https://github.com/go-gitea/gitea/assets/70063547/16633264-20ba-45e3-bfbb-a495ed76a45b)