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

[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 facilitates the automated migration from the legacy gsutil tool to the more modern and recommended gcloud storage command-line interface. The primary goal is to leverage the improved performance, unified authentication, and consistent command structure offered by gcloud storage. While the changes are automated, the PR emphasizes the critical need for careful review and extensive testing to ensure operational continuity and address any subtle behavioral differences between the two tools.

Highlights

• Migration to gcloud storage: This pull request migrates existing gsutil commands to gcloud storage commands, aligning with the recommended and modern tool for interacting with Google Cloud Storage.
• Automated Change: The changes in this PR were automatically generated by an agent as part of an ongoing effort to transition users from gsutil.
• Testing Requirement: Reviewers are urged to thoroughly test these changes due to potential differences in behavior and command output between gsutil and gcloud storage.

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[gemini-code-assist]

Code Review

This pull request is part of an automated effort to migrate from gsutil to gcloud storage. The changes in .kokoro/trampoline_v2.sh correctly update commented-out example commands from gsutil cp to gcloud storage cp. The change is straightforward and correct, aligning with the goals of the migration. I have no further comments.