Postgres: authentication method 10 not supported

Hi, getting the following error when running setup.sh

Successfully built 9eaf079b62d5
Successfully tagged pwnauth_web:latest
pwnauth_db_1 is up-to-date
pwnauth_web_1 is up-to-date
Starting pwnauth_db_1 ... done
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 213, in ensure_connection
self.connect()
File "/usr/local/lib/python3.6/site-packages/django/db/backends/base/base.py", line 189, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.6/site-packages/django/db/backends/postgresql/base.py", line 176, in get_new_connection
connection = Database.connect(**conn_params)
File "/usr/local/lib/python3.6/site-packages/psycopg2/__init__.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: authentication method 10 not supported

Start with setup.sh and the Docker startup output, then inspect the Django PostgreSQL connection path shown in the traceback. Reproduce the setup failure and determine why psycopg2 rejects authentication method 10; done means setup completes without the OperationalError.

Written by the indexing model from the issue text.