Prepare release 4.16.0rc1 #2856

Job	Run time
Run tests (3.13.0)	21s
Run tests (3.10)	17s
Run tests (3.9.12)	24s
Run tests (3.12)	15s
Run tests (3.11.0)	24s
Run tests (3.11)	17s
Run tests (3.12.0)	23s
Run tests (3.13)	18s
Run tests (pypy3.11)	23s
Run tests (pypy3.10)	30s
Run tests (3.10.4)	22s
Run tests (3.14)	14s
Run tests (pypy3.9)	26s
Run tests (3.9)	22s
Create an issue if daily tests failed	0s
	4m 56s

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