Rework loader instantiation logic according to loader core api (!47) · Merge requests · Platform / Development / swh-loader-mercurial

The new loader.core now passes all configuration through the constructor. So no more default configuration only constructor parameters.

Note that this also updated some docstrings and types along the way.

Test Plan

tox (failing until swh.loader.core > 0.17 is released)

Migrated from D5078 (view on Phabricator)