feat: declarative integration test suites#252

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cabljac wants to merge 15 commits intomainfrom

@invertase/integration-tests

Commits on Sep 24, 2025

Commits on Oct 2, 2025

fix(integration_tests): update firebase-admin APIs used and add alerts, fix other test issues
cabljac
committed
fix(integration_tests): use correct alert types
cabljac
committed

Commits on Oct 6, 2025

fix(integration_tests): add all test suites to cloudbuild
cabljac
committed