[Task]: Add Schema Management for the analytics database

[acouch]

Summary

For the #65 we have the analytics container that needs to be able to push data from github to the postgres database. We want a way to make sure the correct tables are created and schema in place.

This needs to support schema changes.

This should be a single file that checks if the tables exist and create them if they don't
similar to: https://github.com/HHS/simpler-grants-gov/blob/main/api/src/db/migrations/setup_local_postgres_db.py

This should be part of the script initialization.

This will likely removed for another tool or strategy down the road.

Acceptance criteria

• file added that can be run in the script initialization

[sumiat]

Combined with #1599