CI test with cython<3#7

Draft

pramodk wants to merge 7 commits intorelease/8.2from

jelic/backport_unified_setup

Commits on Jan 10, 2024

Remove distutils usage
Goran Jelic-Cizmek
committed
one setup.py to rule them all (#2235)

alexsavulescu
authored and
Goran Jelic-Cizmek
committed
Fix wrong name
Goran Jelic-Cizmek
committed
Put back missing symbols
Goran Jelic-Cizmek
committed

Commits on Jan 11, 2024

Fix Cython dep in `setup.py`
Goran Jelic-Cizmek
committed
Fix version issues
Goran Jelic-Cizmek
committed
Reintroduce Cython<3 for ABI compatibility
pramodk
committed