Update Solr indexation to use worker runs

https://redmine.teklia.com/issues/7063

Since we are about to remove the worker_version_id attribute from elements, we need to update the Solr indexer in arkindex.documents.indexer.

The current worker version facet filter remains in place, but the two SQL queries that the indexer uses to find those worker versions must change. Instead of returning documents_element.worker_version_id, they must join on worker runs to return the worker version from there.