"Updater" minimim requirements and expectations of running environment

Resources with updater scripts need should have those run daily (unless they're set not to run in the metadata.json file. An existing server or a dynamic job on [Amazon|Heroku|Azure|etc] will be used for this but script expectations (e.g. 'script should not take longer than xyz to run') need to be defined and the resources available to the running environment (Python/Go/Ruby/Java/R/Rust/Perl versions, curl/wget being available), etc need to be defined and published.