Add `@disjoint_base` (PEP 800) #2189

Job	Run time
Run tests (3.9)	8s
Run tests (3.11.0)	16s
Run tests (3.10.4)	11s
Run tests (pypy3.9)	13s
Run tests (3.9.12)	13s
Run tests (3.13)	8s
Run tests (3.12)	6s
Run tests (pypy3.11)	21s
Run tests (pypy3.10)	8s
Run tests (3.12.0)	14s
Run tests (3.10)	6s
Run tests (3.13.0)	13s
Run tests (3.11)	8s
Run tests (3.14)	15s
Create an issue if daily tests failed	0s
	2m 40s

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