Prepare release 4.15.0 #2327

Job	Run time
Run tests (3.9.12)	15s
Run tests (3.12.0)	18s
Run tests (pypy3.11)	19s
Run tests (pypy3.9)	10s
Run tests (3.11.0)	18s
Run tests (3.10.4)	17s
Run tests (3.9)	10s
Run tests (3.11)	13s
Run tests (pypy3.10)	9s
Run tests (3.13.0)	19s
Run tests (3.14)	17s
Run tests (3.13)	12s
Run tests (3.10)	13s
Run tests (3.12)	15s
Report coverage	20s
Create an issue if daily tests failed	0s
	3m 45s

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