Fix compatibility with Python 3.14.0a1 #550

Job	Run time
Python 3.7 on macos-13	3m 0s
Python 3.7 on Windows x86	2m 53s
Python 3.13-dev on macos-13	3m 6s
Python 3.8 on Windows x86	3m 2s
Python 3.13-dev (minimal build) on macos-13	5m 23s
Linux docs	1m 10s
Python 3.9 on Windows x86	3m 38s
Python 3.13-dev on macos-latest	1m 30s
Linux meta	1m 10s
Python 3.10 on Windows x86	3m 10s
Python 3.13-dev (minimal build) on macos-latest	1m 46s
Linux mypy	58s
Python 3.11 on Windows x86	2m 14s
Linux pypy3	3m 5s
Python 3.12 on Windows x86	2m 39s
Linux pypy3	2m 45s
Python 3.13-dev on Windows x86	2m 53s
Linux py37	1m 44s
Python 3.7 on Windows x64	2m 13s
Linux py38	1m 47s
Python 3.8 on Windows x64	1m 41s
Linux py39	1m 46s
Python 3.9 on Windows x64	1m 46s
Linux py310	1m 48s
Python 3.10 on Windows x64	2m 17s
Linux py311	1m 48s
Python 3.11 on Windows x64	2m 16s
Linux py312	1m 50s
Python 3.12 on Windows x64	2m 17s
Linux py313	1m 55s
Python 3.13-dev on Windows x64	2m 21s
Linux py313 system	2m 46s
Linux py313 minimal	1m 50s
	1h 16m 27s

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