This does the following:
- Consolidates the app_setup and test jobs into one. The test job was
only one additional step, so it's not worth separating.
- Updates the Postgres image used to reflect what we're using for the
deployed version of the site (i.e., v 10).
- Removes some unnecessary steps from the first job.
- Removes all AWS config so that CD will only push to the Azure
container registry, run migrations against the Azure-hosted database,
and rotate the container images in the Azure k8s cluster.
85da084cd7