swh-web: Migrate to new storage.origin_visit_add endpoint
Depends on swh-storage!875 (closed) (storage) Depends on swh-loader-core!360 (closed) (loader-core) Related to T2310
Test Plan
tox
Migrated from D3267 (view on Phabricator)
Staging instance, all changes can be removed at any time
Depends on swh-storage!875 (closed) (storage) Depends on swh-loader-core!360 (closed) (loader-core) Related to T2310
tox
Migrated from D3267 (view on Phabricator)