Script the process for jbosstools projects to move up to the latest parent pom in their root pom & all-tests pom; verify that changes are valid & push to origin

Current process for moving all the JBT projects to the latest parent pom involves generating 15+ JIRAs assigned to the various project leads, so they can all adopt the latest parent pom, verify their build works, and push the change.

With the advent of PR build jobs, we can now streamline this a little:

instead of creating Task JIRAs, create PRs & let them run automatically.
if they pass, push them in automatically (via script that Alexey or Denis would run)