Adjust harvest code to delete removed events from the right table

backend/src/sync/harvest/mod.rs

@@ -188,7 +188,7 @@ async fn store_in_db(
  let segments = segments.into_iter().map(Into::into).collect::<Vec<EventSegment>>();
 
  // We upsert the event data.
- upsert(db, "events", "opencast_id", &[
+ upsert(db, "all_events", "opencast_id", &[
  ("opencast_id", &opencast_id),
  ("state", &EventState::Ready),
  ("series", &series_id),
@@ -219,7 +219,7 @@ async fn store_in_db(
 
  HarvestItem::EventDeleted { id: opencast_id, .. } => {
  let rows_affected = db
- .execute("delete from events where opencast_id = $1", &[&opencast_id])
+ .execute("delete from all_events where opencast_id = $1", &[&opencast_id])
  .await?;
  check_affected_rows_removed(rows_affected, "event", &opencast_id);
  removed_events += 1;