Depends on D4920
We consolidate celery and k8sRunLauncher under one field:
runLauncher. Similar to D5745 and D4920, we use enum types
to switch between the two supported run launchers.
diff the output of helm template before and after change
fix integration tests
i take it the new defaults will be in a followup diff?
don't we want to default to k8srunlauncher?
and this false?