chore: Migrate gsutil usage to gcloud storage#1983

gurusai-voleti wants to merge 2 commits intogoogleapis:maingoogleapis/python-genai:mainfrom

gurusai-voleti:ai-gsutil-migration-f29b4157ff4e4c1d871536c9388f70dcgurusai-voleti/python-genai:ai-gsutil-migration-f29b4157ff4e4c1d871536c9388f70dcCopy head branch name to clipboard