Use the ArcGIS Data Interoperability server extension to share Spatial ETL tools to federated and stand-alone ArcGIS Server sites.
Install and license the ArcGIS Data Interoperability server extension on each server machine that will host web tools.
Configure your server to support hosting web tools authored in ArcGIS Pro.
Schedule Spatial ETL tools to run as a regular recurrence on your ArcGIS Server.