Fix call to `update_column`
Fix call to `update_column`

The method `update_column` takes 2 arguments: the column name and the value,
rather than a hash. This commit fixes the method call so the rake task completes
without errors.

https://github.com/rails/rails/blob/5d1402a1011f58b405e42007d3ceed4e122d273e/activerecord/lib/active_record/persistence.rb#L272

alphagov/publishing-api,alphagov/publishing-api