search.journal_client: Actually filter on full origin_visit_status
I think something went badly in some old rebase I did because I thought that was already the case.
Or I may conflate with the other indexer journal client... [1]
- [1] https://forge.softwareheritage.org/source/swh-indexer/browse/master/swh/indexer/journal_client.py$25
Test Plan
tox
Migrated from D4749 (view on Phabricator)