Well, I believe nor Super Auto Pets, nor asset developer, nor me are violated any copyrights or rules :)
https://assetstore.unity.com/packages/audio/music/a-casual-music-pack-160915 - latest version of the asset was released in Feb 2020, and according to Google, initial release date of Super Auto Pets is September 24, 2021. So, Super Auto Pets just use music from that asset. Though they did not mention it in credits, it is not required by Unity's license.
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No problem :) That's actually good you paid attention - while it's somehow forgivable for small non-profit projects, sometimes even commercial projects violate copyrights and that definitely should not go unnoticed.
Actually, that's generally quite a big issue when public assets are used in popular projects, because it alters average users' perception on games they see after that. Some time ago I was quite confused to see models in some game, veeery similar to models in completely another one (I thought assets were copied from Perfect Heist). Then I found out about Synty Studios :D