Test

👷 Upgrade `latest-changes` GitHub Action and pin `actions/checkout@v5… #3056

Job	Run time
test (macos-latest, 3.14, pydantic-v2)	1m 17s
test (windows-latest, 3.14, pydantic-v2)	2m 10s
test (macos-latest, 3.13, pydantic-v2)	45s
test (ubuntu-latest, 3.10, pydantic-v1)	44s
test (ubuntu-latest, 3.14, pydantic-v2)	53s
test (windows-latest, 3.9, pydantic-v2)	1m 43s
test (windows-latest, 3.12, pydantic-v1)	1m 20s
test (macos-latest, 3.8, pydantic-v1)	1m 17s
test (macos-latest, 3.11, pydantic-v2)	56s
test (ubuntu-latest, 3.13, pydantic-v1)	47s
coverage-combine	26s
alls-green	4s
	12m 22s

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