There is this new version by Iarla O Lionard...

https://m.youtube.com/watch?v=Oia3W_A9W8k

I don't recognize the lyrics in this, but I'll try to guess at what it sounds like...

Do Casadh Cailin (a rohn) aoighneas na tra
Air (looiv) na cuile 's (squishe voh gla).

That concludes my attempt haha

I'm guessing the lyrics tie into the film because the trailer does show a happy girl on a beach....lol