The issue is most likely related to the custom icon. It seems to be a false positive detection (some antivirus programs are known to give false positives on indie games such as those made with Ren’Py), but just to be sure, you can contact your antivirus providers and/or support so they can check the files themselves for your peace of mind.
If you’re using Windows Defender you might want to check [this] and [this] thread.