There is an updated pull request by sgn against master on the void-packages repository

https://github.com/sgn/void-packages pyqt5-5.15.0
https://github.com/void-linux/void-packages/pull/24182

PyQt5 5.15.0
- [x] cross built for PyQt5
- [ ] test
- [ ] check if PyQt5's dependants need to be rebuild?

Close #22109 
Close #23666
Close #24076 

A patch file from https://github.com/void-linux/void-packages/pull/24182.patch is attached