Currently, in the orchestrator and workflows charts, the persistence is configured using the values as if https://github.com/parodos-dev/orchestrator-helm-operator/blob/main/docs/postgresql/README.md was followed to install PSQL.

If the user is not following that happy path, it will get errors when starting workflows and DI and JS

We need to explains what to configure if the user wants to use its own instance of psql, both in the workflows docs and in the orchestrator doc