Test

Update relationships.md #2422

Job	Run time
test (ubuntu-latest, 3.8, pydantic-v1)	33s
test (ubuntu-latest, 3.9, pydantic-v1)	31s
test (ubuntu-latest, 3.8, pydantic-v2)	40s
test (ubuntu-latest, 3.12, pydantic-v2)	1m 43s
test (ubuntu-latest, 3.11, pydantic-v2)	58s
test (ubuntu-latest, 3.13, pydantic-v1)	34s
test (ubuntu-latest, 3.9, pydantic-v2)	45s
test (ubuntu-latest, 3.10, pydantic-v2)	50s
test (ubuntu-latest, 3.11, pydantic-v1)	32s
test (ubuntu-latest, 3.12, pydantic-v1)	42s
test (ubuntu-latest, 3.10, pydantic-v1)	37s
test (ubuntu-latest, 3.13, pydantic-v2)	1m 37s
coverage-combine	24s
alls-green	3s
	10m 29s

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