Fix compatibility with Python 3.14.0a1 #549

Job	Run time
Python 3.7 on macos-13	2m 44s
Linux docs	1m 8s
Python 3.13-dev on macos-13	3m 31s
Linux meta	1m 0s
Python 3.7 on Windows x86	2m 38s
Python 3.13-dev (minimal build) on macos-13	3m 1s
Python 3.8 on Windows x86	3m 19s
Linux mypy	1m 4s
Python 3.13-dev on macos-latest	1m 35s
Python 3.9 on Windows x86	2m 50s
Python 3.13-dev (minimal build) on macos-latest	1m 43s
Linux pypy3	3m 2s
Python 3.10 on Windows x86	2m 13s
Linux pypy3	2m 50s
Python 3.11 on Windows x86	2m 22s
Linux py37	1m 44s
Python 3.12 on Windows x86	2m 56s
Linux py38	1m 45s
Python 3.13-dev on Windows x86	3m 14s
Linux py39	1m 46s
Python 3.7 on Windows x64	2m 16s
Linux py310	1m 45s
Python 3.8 on Windows x64	2m 17s
Linux py311	1m 44s
Python 3.9 on Windows x64	1m 51s
Linux py312	1m 47s
Python 3.10 on Windows x64	1m 49s
Linux py313	1m 59s
Python 3.11 on Windows x64	1m 47s
Linux py313 system	2m 39s
Python 3.12 on Windows x64	1m 51s
Linux py313 minimal	1m 52s
Python 3.13-dev on Windows x64	2m 21s
	1h 12m 23s

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