Update PEP 649/749 implementation (#596) #2026

Job	Run time
Lint	6s
Run tests (3.9)	5s
Run tests (3.9.12)	15s
Run tests (3.10)	5s
Run tests (3.10.4)	11s
Run tests (3.11)	6s
Run tests (3.11.0)	12s
Run tests (3.12)	5s
Run tests (3.12.0)	13s
Run tests (3.13)	7s
Run tests (3.13.0)	15s
Run tests (3.14-dev)	20s
Run tests (pypy3.9)	12s
Run tests (pypy3.10)	11s
Create an issue if daily tests failed	0s
	2m 23s

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