The package needs porting to Python 3.13.
Some time ago there were talks in the maxima mailing list that a new version will be released really soon now. So, I thought it would be easier to include python3_13 directly to the ebuild for the new version. But these talks somehow died out, and now nobody promises a new version soon. So, I suppose, I'd better do 5.47.0-r2 with python3_13.
I forgot. I already tried to do it, but it is impossible before https://bugs.gentoo.org/952680 is fixed