Nitin Srinivasan 9fb29766a2 Add workflow for testing nightly/release artifacts
This commits adds a Github action workflow that will be used to jobs that test the nightly/release artifacts. These artifacts are built by our internal CI jobs and are uploaded to a transient GCS bucket. After all the wheels have finished uploading, an internal job is run that that will trigger the `wheel_tests_nightly_release.yml` workflow.

PiperOrigin-RevId: 716789482
2025-01-17 13:53:47 -08:00
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