chore: parallel tests

[apeabody]

No description provided.

[gemini-code-assist]

Summary of Changes

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This pull request optimizes the continuous integration pipeline by configuring GKE cluster tests to run in parallel. By adjusting the waitFor dependencies in the Cloud Build configuration, the application of standard and autopilot GKE clusters no longer waits for the teardown of preceding clusters, but instead relies on a shared initialization step. This change is intended to reduce overall test execution time and improve pipeline efficiency.

Highlights

• Parallel Test Execution: Modified the cloudbuild.yaml configuration to enable parallel execution of GKE cluster application steps by updating their waitFor dependencies.
• Dependency Refactoring: Changed the waitFor conditions for apply gke-standard-cluster and apply gke-autopilot-cluster steps from depending on previous cluster teardowns to a common init-all step.

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[gemini-code-assist]

Code Review

This pull request updates the Cloud Build configuration to run more integration tests in parallel. The gke-standard-cluster and gke-autopilot-cluster tests are modified to depend on the init-all step, removing a sequential dependency on other tests. This change should reduce the overall pipeline execution time by enabling more tests to run concurrently. The modification aligns with the existing parallel execution strategy seen with other tests in the pipeline and is a positive improvement for CI efficiency.