[v1.x] Support Python 3.14 (#2769) #599

Job	Run time
checks / pre-commit	26s
checks / doc-snippets	14s
checks / test (3.11, lowest-direct, windows-latest)	2m 13s
checks / test (3.10, highest, windows-latest)	2m 55s
checks / test (3.10, highest, ubuntu-latest)	43s
checks / test (3.13, lowest-direct, windows-latest)	2m 14s
checks / test (3.12, lowest-direct, ubuntu-latest)	50s
checks / test (3.13, lowest-direct, ubuntu-latest)	44s
checks / test (3.12, highest, ubuntu-latest)	47s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 7s
checks / test (3.10, lowest-direct, windows-latest)	3m 10s
checks / test (3.10, lowest-direct, ubuntu-latest)	47s
checks / test (3.12, highest, windows-latest)	3m 0s
checks / test (3.13, highest, ubuntu-latest)	47s
checks / test (3.13, highest, windows-latest)	2m 26s
checks / test (3.11, highest, ubuntu-latest)	49s
checks / test (3.11, lowest-direct, ubuntu-latest)	40s
checks / test (3.14, highest, windows-latest)	2m 10s
checks / test (3.12, lowest-direct, windows-latest)	3m 16s
checks / test (3.11, highest, windows-latest)	2m 4s
checks / test (3.14, lowest-direct, windows-latest)	2m 25s
checks / test (3.14, highest, ubuntu-latest)	1m 15s
	35m 2s

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