lang/cython-devel: add port

Add devel version of cython. Apart from that 3.x cython branch is
where all the development goes on, 0.29.x only getting backported
bugfixes, this is currently the only version which supports python
3.11. Because of that, wire USE_PYTHON=cython to cython-devel for
python >= 3.11 in Uses/python.mk as well and limit supported python
versions with <= 3.10 for cython.

PR: 259898
Approved by: python (lwhsu)