read this:
https://itch.io/t/4120453/game-quarantined-search-or-indexing-problem-read-this
But long story short, your game needs to go through a manual review before being indexed.
It's impossible to tell you how long it will take; it can range from a few hours to a couple of weeks, and there's nothing you can do to prevent it, as it's designed to prevent bad actors from uploading viruses or similar.