FIX: Fix verification_status migration for uploads

* Missing ELSE 1 even though there is a default on the
  column.

db/migrate/20200910051633_change_uploads_verified_to_integer.rb

@@ -10,6 +10,7 @@ class ChangeUploadsVerifiedToInteger < ActiveRecord::Migration[6.0]
       UPDATE uploads SET verification_status = CASE WHEN
         verified THEN 2
         WHEN NOT verified THEN 3
+        ELSE 1
         END
       SQL
     )