Jerome Kelleher

Support numpy >= 2, drop Python 3.8

2

Also add support for Python 3.12

MacOS ARM wheels packages broken

2

Getting this error when I run on ARM mac in upstream CI: ``` Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/msprime/__init__.py:28: in 27 from msprime._msprime import ( 28 E ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/msprime/_msprime.cpython-311-darwin.so, 0x0002): symbol not found in flat...

I don't think we do anything with the benchmarks @benjeffery - shall we drop them, in the interest of simplifying our CI setup? We can probably drop the benchmark code...