Use atcHandler.PipelineConfig instead of GetConfig
Use atcHandler.PipelineConfig instead of GetConfig

[#105155444]

Signed-off-by: Evan Short <5b1db704470d35a058f1f4a9e1a5a172a6ea69d3@pivotal.io>

concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse,concourse/concourse