Logging: Solid schema to facilitate downstream maintenance

[p-ferreira]

Recently the log schema was changed by the addition of new tasks, which created some maintenance work on dowstream tasks of extraction. We faced the same issue on previous versions of S1, where the solution of having a typed schema (EventSchema) facilitated the progression of the schema of our logs, hence facilitating maintanence.

Proposed solution:
We should add a typed schema to easily normalize and version the data structure we log in wandb.
https://github.com/opentensor/prompting/blob/5bc2e3c159b6ad1f3e14806b1b2003c172df1f4c/prompting/utils/logging.py#L106-L119