GitHub Actions: Test on Python 3.14 #2626

Job	Run time
checks / pre-commit	29s
checks / readme-snippets	20s
checks / test (3.10, lowest-direct, ubuntu-latest)	44s
checks / test (3.14, highest, ubuntu-latest)	18s
checks / test (3.12, highest, windows-latest)	1m 33s
checks / test (3.13, highest, windows-latest)	1m 24s
checks / test (3.12, lowest-direct, windows-latest)	1m 50s
checks / test (3.12, highest, ubuntu-latest)	38s
checks / test (3.14, lowest-direct, ubuntu-latest)	22s
checks / test (3.10, lowest-direct, windows-latest)	1m 23s
checks / test (3.10, highest, ubuntu-latest)	39s
checks / test (3.10, highest, windows-latest)	1m 16s
checks / test (3.11, lowest-direct, windows-latest)	1m 34s
checks / test (3.12, lowest-direct, ubuntu-latest)	38s
checks / test (3.14, highest, windows-latest)	46s
checks / test (3.14, lowest-direct, windows-latest)	1m 7s
checks / test (3.11, lowest-direct, ubuntu-latest)	41s
checks / test (3.13, lowest-direct, windows-latest)	1m 32s
checks / test (3.13, lowest-direct, ubuntu-latest)	44s
checks / test (3.11, highest, ubuntu-latest)	44s
checks / test (3.13, highest, ubuntu-latest)	43s
checks / test (3.11, highest, windows-latest)	1m 29s
	20m 54s

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