Update inference with actuals

[stavrostheocharis]

Description

The user can only upload the actuals together with the other data in the log_inferences function. There should be another function in SDK in order that the user will be able to solely upload his actuals in the future.

Describe the solution you'd like

Here the user has to give also his own ID for the inferences in order to match them with our side (for future reference). This has to do with the other schemas of WB and the user has to always provide us with his own ID for the inferences. So we have also to update the inference schemas in order to also capture this "foreign id".

[momegas]

We also need to create an API endpoint because at the moment it does not exist. I propose something like PATCH /inference-rows/{inference_row_id}