Test

✅ Simplify tests for code examples, one test file for multiple varian… #3152

Job	Run time
test (ubuntu-latest, 3.10, pydantic-v1)	41s
test (windows-latest, 3.9, pydantic-v2)	2m 1s
test (ubuntu-latest, 3.14, pydantic-v2)	53s
test (windows-latest, 3.14, pydantic-v2)	1m 46s
test (macos-latest, 3.8, pydantic-v1)	1m 13s
test (macos-latest, 3.13, pydantic-v2)	50s
test (macos-latest, 3.14, pydantic-v2)	47s
test (macos-latest, 3.11, pydantic-v2)	40s
test (ubuntu-latest, 3.13, pydantic-v1)	41s
test (windows-latest, 3.12, pydantic-v1)	1m 10s
coverage-combine	20s
alls-green	4s
	11m 6s

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