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 automates the migration of commands from the legacy gsutil tool to the modern gcloud storage interface. The change is part of an ongoing effort to standardize interactions with Google Cloud Storage, offering benefits such as improved performance and unified authentication. It is crucial for reviewers to thoroughly test these changes, as subtle behavioral differences between gsutil and gcloud storage could impact existing workflows.

Highlights

• Migration to gcloud storage: This pull request migrates usage from the legacy gsutil tool to the recommended gcloud storage command-line interface for interacting with Google Cloud Storage. This is an automated change aimed at improving performance and consistency.
• Updated Kokoro script examples: The example cp commands within the .kokoro/trampoline_v2.sh script have been updated from gsutil cp to gcloud storage cp.

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[gemini-code-assist]

Code Review

This pull request contains an automated migration from gsutil to gcloud storage. The change is confined to comments within the .kokoro/trampoline_v2.sh script, updating example commands from gsutil cp to gcloud storage cp. The change is correct and aligns with the goal of modernizing the command-line interface for Google Cloud Storage interactions. I see no issues with this update.