Upgrade to release 3.5.2:
- The minimum supported version of Python 3.15 is now 3.15b2.
- Fix some garbage-collection related crashes on free-threaded
Python 3.15.
- Improve garbage collection of greenlets. This mostly applies
to Python 3.15.
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
