tests

build: configure cloudbuild for psa tests #4615

Job	Run time
unit tests (3.9)	59s
unit tests (3.13)	1m 4s
integration tests (macos-latest, 3.9)	1m 30s
integration tests (macos-latest, 3.13)	51s
integration tests (windows-latest, 3.9)	1m 31s
integration tests (windows-latest, 3.13)	1m 28s
integration tests (ubuntu-latest, 3.9)	50s
integration tests (ubuntu-latest, 3.13)	49s
	9m 2s

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