ports/cura: Update to 4.13.1

Major update to 4.13.1 not 4.12
I've said it before and I'll say it again. This port should be a
group effort but a cads porting team. I'd be happy to give
up Maintainership as my only interest with cura was to get it into
ports.

PR: ports/255630
Reported by: unrelentingtech <greg@unrelenting.technology>
Tested by: trombik1973@gmail.com