Includes:
- drop xmltodict dependency in favor of ElementTree implementation
- deposit: separate deposit types
- Add warning to various deposit clis when provenance metadata is not provided by clients
Requisite:
- deploy loader.core v2.5.2 (upgrade package, then restart swh-worker@loader_deposit)
Plan:
- Upgrade debian package definition (debian/control) and drop python3-xmltodict dep
- Upgrade python3-swh.deposit* package in server
- Restart gunicorn-swh-deposit service