Add `@disjoint_base` (PEP 800) #2190

Job	Run time
Run tests (3.10.4)	13s
Run tests (3.9.12)	15s
Run tests (3.11.0)	14s
Run tests (3.11)	8s
Run tests (3.9)	8s
Run tests (3.12)	8s
Run tests (3.13)	13s
Run tests (3.10)	8s
Run tests (3.12.0)	17s
Run tests (3.13.0)	12s
Run tests (3.14)	20s
Run tests (pypy3.9)	9s
Run tests (pypy3.11)	19s
Run tests (pypy3.10)	10s
Create an issue if daily tests failed	0s
	2m 54s

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