Create GHA to injest the ZXS data

Pull this data from the federal government datamart and push it up to object store. For location in object store, try to emulate the existing directory structure used on prem.

The trigger for this will be a cron based trigger, using the same timing as the existing job. Subsequent tasks will transition it to an event based trigger using the same patter created for the CMC pipeline

Start by locating the existing on-prem job to confirm its schedule and directory structure, then review the CMC pipeline pattern for the intended GitHub Actions approach. Done means a cron-triggered workflow pulls ZXS data from the federal government datamart and writes it to object storage using the matching structure.

Written by the indexing model from the issue text.