Resolve "Implement restoring from an Object Storage backup on GCP"

What does this MR do and why?

Adds support for Object Storage to the restore subcommand

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Demo'd in Geo Office Hourse on September 19, 2024

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

Related to #469247 (closed)