tests

docs: Add sample Cloud Run example application #5725

Job	Run time
unit tests (3.9)	1m 9s
unit tests (3.13)	1m 11s
integration tests (macos-latest, 3.13)	1m 22s
integration tests (macos-latest, 3.9)	2m 2s
integration tests (ubuntu-latest, 3.13)	1m 18s
integration tests (windows-latest, 3.13)	1m 56s
integration tests (ubuntu-latest, 3.9)	1m 28s
integration tests (windows-latest, 3.9)	1m 33s
	11m 59s

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