Argo workflows's should stick around for a week or so. (#363)
Argo workflows's should stick around for a week or so. (#363)

* Argo workflows were being GC'd after 3 hours like other resources. That is
too aggressive. We want the workflows to be around longer to aid debugging.
* Fix 362
kubeflow/testing,kubeflow/testing,kubeflow/testing,kubeflow/testing,kubeflow/testing