[Python] - Migrate enable per request authentification in new python codegen

Created by: LeComptoirDesPharmacies

Can now overwrite request auth in request

Actually in current python codegen, authentification is managed in api configuration. But when you instantiate a new configuration, a new thread poll is create with it, so each time you need to change your authentification key, you will create a thread poll which will pull down the performance of the application.

We could have a global configuration and change the authentification but it will not be thread safe.

The solution was already developed in python-legacy but it has not be migrated. ( In this PR #6569 )

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Thanks for the review