Following the forking of `github-google-actions/setup-gcloud` into
individual actions, the functionality for authenticating on Google
Cloud within GitHub workflows has been moved to the
`github-google-actions/auth` action.
This patch updates the Windows Periodic Integration test workflow to use
the new `auth` action, as well as switching to using Workload Identity
Federation-based authorization which is superseding the Service Account
Key-based authorization the Windows Periodic workflow was using thus far.
Signed-off-by: Nashwan Azhari <nazhari@cloudbasesolutions.com>
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