This additional secrets-tool command can be used to run the database
bootsrapping script (`script/database_setup.py`) inside an ATAT docker
container against the Azure database. It sources the necessary keys from
Key Vault.
This script is for bootstrapping the initial database. It can be run via
a container, but requires that a Postgres superuser's credentials be
provided via our normal config. That way the superuser can provision a
less-privileged user for the application's database connection.