chore(php): [Many APIs] move all remaining migration_mode=MIGRATING to NEW_SURFACE_ONLY#9030

bshaffer merged 2 commits intomaingoogleapis/google-cloud-php:mainfrom

owl-bot-copy-a05a0f27ec77dad4ff5dgoogleapis/google-cloud-php:owl-bot-copy-a05a0f27ec77dad4ff5dCopy head branch name to clipboard