`meltano elt` doesn't respect dbt exit code
As per a Slack discussion:
Running into an issue with dbt I was hoping to get some help with. I have a dbt process that I'm running with meltano elt. When I run into an error during the transformation I'm still getting back a success exit status from Meltano.
We need to make sure
meltano elt returns a successful exit code if and only if all the components were successful.