Exactly: seeding is uploading, and uploading can be infringement. So, if your torrent client seeded any part of the work to anyone, that could be considered infringement.
But, there is no evidence that ChatGPT received the works in question via torrent, and even if there was, there is no evidence that they actually seeded anything back to the swarm. Hell, there’s no evidence that ChatGPT even actually possesses the works in question.