athenaHLT: fix running interactively with dump-config-reload

Frank Winklmeierrequested to merge
fwinkl/athena:helloworld into 23.0

When running with --dump-config-reload the first pass needs to be done without running interactively. So far this was never used. But in CA-mode, this is the default.

Also migrate the HelloWorld ART tests to CA.

Merge request reports