- Update docker compose steps for mysql and spanner to use pytest
- Add infra and configuration for pytest to run tests
- Remove old "run.py" test setup
Closes STOR-235
Note: this commit contains a breaking change. Previously, there was a migration that included two services with static IDs by default, but this commit adds a new migration that removes those two services and adjusts the code to account for the change.
Closes#1144
