WFO won't start probably due to wrong PostgreSQL version

[sergio-gimenez]

Last pull request seems to have broken WFO due to PostgreSQL version. Attaching docker-compose logs below:

Attaching to example-orchestrator-beginner-db-init-1, example-orchestrator-beginner-db-upgrade-heads-1, example-orchestrator-beginner-gui-1, example-orchestrator-beginner-orchestrator-1, example-orchestrator-beginner-postgres-1
example-orchestrator-beginner-postgres-1          | 
example-orchestrator-beginner-postgres-1          | PostgreSQL Database directory appears to contain a database; Skipping initialization
example-orchestrator-beginner-postgres-1          | 
example-orchestrator-beginner-postgres-1          | 2023-03-23 15:41:45.024 UTC [1] FATAL:  database files are incompatible with server
example-orchestrator-beginner-postgres-1          | 2023-03-23 15:41:45.024 UTC [1] DETAIL:  The data directory was initialized by PostgreSQL version 15, which is not compatible with this version 13.10 (Debian 13.10-1.pgdg110+1).
example-orchestrator-beginner-postgres-1 exited with code 1
dependency failed to start: container example-orchestrator-beginner-postgres-1 exited (1)

However, in previous commits such as bac4135eb0addd5eb30e6fba401079f356600e5a WFO starts as expected.