chore: Migrate gsutil usage to gcloud storage#14931

gurusai-voleti wants to merge 2 commits intogoogle:mastergoogle/oss-fuzz:masterfrom

gurusai-voleti:ai-gsutil-migration-9adfba10cb904976b26dee7234dec5dcgurusai-voleti/oss-fuzz:ai-gsutil-migration-9adfba10cb904976b26dee7234dec5dcCopy head branch name to clipboard