[cctbxbb] Python 3.12 release schedule

Hi, I see in the commit that you guys are working on supporting Python 3.12. With the latest version of Python 3.11 on Anaconda, we have a compatibility issue between Qt that we use and ICU 70.1 that cctbx requires. The problem is solved by moving to Python 3.12, hence my question: when can we hope to see a release with Python 3.12? No pressure! Just trying to plan ahead. Best wishes, Luc