I'd like to set the lyrics language for this work: https://musicbrainz.org/work/4fa3fcaa-30cd-4690-be4a-54f1112a7cf8

If you look at the discogs page for the only release with a recording of it, you can see on the label of the 45 it says "Tango/Mina". Albarika Store consistently labeled 45s with song genre and language like this.

The language indicated is almost certainly the one here: https://en.wikipedia.org/wiki/Hina_language . It has ISO code hna.