build

Add conftest policies for GitHub Actions #24304

Job	Run time
cleanups	4s
testmask	28s
integration-trigger-dependabot	0s
validate-python-codegen	14s
validate-generated-is-up-to-date	39s
integration-trigger	7s
make test (linux, direct)	5m 1s
make test (macos, direct)	5m 9s
make test (linux, terraform)	9m 13s
make test (windows, terraform)	16m 17s
make test (macos, terraform)	12m 14s
make test (windows, direct)	10m 6s
make test-pipelines	0s
make test-exp-aitools	0s
make test-exp-ssh	0s
test-result	4s
	59m 36s

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