Add support for Python 3.13 (#842) #532

Job	Run time
Linux docs	1m 13s
Linux meta	1m 19s
Python 3.7 on macos-13	3m 11s
Linux mypy	1m 3s
Python 3.7 on Windows x86	2m 31s
Python 3.13-dev on macos-13	4m 7s
Linux pypy3	2m 46s
Python 3.8 on Windows x86	2m 39s
Python 3.13-dev (minimal build) on macos-13	3m 39s
Python 3.9 on Windows x86	2m 31s
Linux pypy3	3m 4s
Python 3.13-dev on macos-latest	1m 54s
Python 3.10 on Windows x86	2m 34s
Linux py37	1m 42s
Python 3.13-dev (minimal build) on macos-latest	2m 36s
Python 3.11 on Windows x86	2m 31s
Linux py38	1m 42s
Python 3.12 on Windows x86	2m 4s
Linux py39	1m 47s
Python 3.13-dev on Windows x86	3m 6s
Linux py310	1m 50s
Python 3.7 on Windows x64	2m 13s
Linux py311	1m 43s
Python 3.8 on Windows x64	1m 54s
Linux py312	1m 48s
Python 3.9 on Windows x64	2m 11s
Linux py313	2m 1s
Python 3.10 on Windows x64	2m 3s
Linux py313 system	2m 38s
Python 3.11 on Windows x64	2m 4s
Linux py313 minimal	1m 57s
Python 3.12 on Windows x64	2m 6s
Python 3.13-dev on Windows x64	2m 18s
	1h 14m 45s

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