chore: Migrate gsutil usage to gcloud storage

[gurusai-voleti]

Automated: Migrate {target_path} from gsutil to gcloud storage

This CL is part of the on going effort to migrate from the legacy gsutil tool to the new and improved gcloud storage command-line interface.
gcloud storage is the recommended and modern tool for interacting with Google Cloud Storage, offering better performance, unified authentication, and a more consistent command structure with other gcloud components. 🚀

Automation Details

This change was generated automatically by an agent that targets users of gsutil.
The transformations applied are based on the gsutil to gcloud storage migration guide.

⚠️ Action Required: Please Review and Test Carefully

While we have based the automation on the migration guide, every use case is unique.
It is crucial that you thoroughly test these changes in environments appropriate to your use-case before merging.
Be aware of potential differences between gsutil and gcloud storage that could impact your workflows.
For instance, the structure of command output may have changed, requiring updates to any scripts that parse it. Similarly, command behavior can differ subtly; the gcloud storage rsync command has a different file deletion logic than gsutil rsync, which could lead to unintended file deletions.

Our migration guides can help guide you through a list of mappings and some notable differences between the two tools.

Standard presubmit tests are run as part of this CL's workflow. If you need to target an additional test workflow or require assistance with testing, please let us know.

Please verify that all your Cloud Storage operations continue to work as expected to avoid any potential disruptions in production.

Support and Collaboration

The GCS CLI team is here to help! If you encounter any issues, have a complex use case that this automated change doesn't cover, or face any other blockers, please don't hesitate to reach out.
We are happy to work with you to test and adjust these changes as needed.

Contact: gcs-cli-hyd@google.com

We appreciate your partnership in this important migration effort!

#gsutil-migration

[gurusai-voleti]

Hi @akitsch, Can we get your review on this PR? Thanks!

[gemini-code-assist]

Summary of Changes

Hello @gurusai-voleti, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the migration of Google Cloud Storage (GCS) operations from the legacy gsutil command-line tool to the modern gcloud storage interface within Cloud Build configuration files. This change aligns with Google Cloud's recommendation for improved performance, unified authentication, and a consistent command structure across gcloud components. The modifications ensure that GCS bucket creation, deletion, notification setup, and file copying are performed using the updated gcloud storage syntax.

Highlights

• Cloud Build Image Update: The Cloud Build steps now utilize the gcr.io/cloud-builders/gcloud:latest image instead of the legacy gcr.io/cloud-builders/gsutil:latest image.
• GCS Bucket Deletion Command Migration: gsutil rm -r commands for deleting Google Cloud Storage buckets have been replaced with gcloud storage rm --recursive.
• GCS Bucket Creation Command Migration: gsutil mb -p commands for creating Google Cloud Storage buckets have been updated to gcloud storage buckets create --project.
• GCS Notification Creation Command Migration: gsutil notification create commands for setting up Pub/Sub notifications on GCS buckets have been migrated to gcloud storage buckets notifications create.
• GCS File Copy Command Migration: gsutil cp commands for copying files to Google Cloud Storage have been replaced with gcloud storage cp.

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[gemini-code-assist]

Code Review

This pull request automatically migrates gsutil commands to gcloud storage in the end-to-end test configuration files. While the migrations are mostly correct, there's a significant behavior change in the cleanup script (e2e_test_cleanup.yaml). The original gsutil rm command was likely incorrect and would fail, whereas the new gcloud storage rm command only partially cleans up resources. I've provided a suggestion to ensure a complete cleanup of GCS buckets, which seems to be the original intent.