* Change tld-update to db-object-updater
* rename sync_tlds.sh to sync_db_objects.sh
* Change to configured command name
* Change environment to sandbox explicitly for testing on alpha
* Add remaining object steps and change cloudbuild-tld-sync to cloudbuild-sync-db-objects
* Add build_environment flag
* Change order of command and directory
* Uncomment out reserved list part
