Add XRootD 5 based XCache image builds

Description

XRootD 5 and plugins are built and available in osg-upcoming-minefield so let's push upcoming-fresh and upcoming-<TIMESTAMP> tags to Docker Hub. This is also a good opportunity to move things over to GitHub Actions (I think they can live alongside Travis CI)

Freshdesk Tickets

None

Assignee

Edgar Fajardo

Reporter

Brian Lin

Priority

Major

Labels

Components

Epic Link

Configure