Update database query after schema changes

The Wiki Replicas have had schema changes:

• *_user and *_user_text fields were dropped.
• there is a new 'actor' table

See https://wikitech.wikimedia.org/wiki/News/Actor_storage_changes_on_the_Wiki_Replicas

Just like we did in aabd6ec2b0, we do an additional
join on the actor_image view to get the actor_name.

Bug: T231796