Clarify version policy #2898

Job	Run time
Run tests (3.13.0)	18s
Run tests (3.10)	22s
Run tests (3.12)	13s
Run tests (3.10.4)	19s
Run tests (pypy3.9)	25s
Run tests (pypy3.10)	27s
Run tests (3.9.12)	18s
Run tests (3.9)	19s
Run tests (3.11)	17s
Run tests (3.13)	14s
Run tests (3.12.0)	25s
Run tests (3.14)	17s
Run tests (3.11.0)	24s
Run tests (pypy3.11)	29s
Build docs	10s
Create an issue if daily tests failed	-1s
	4m 56s

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