Pass product renames to AddOnProduct module

 to update the default fallback mapping

- 3.1.85
better to use reduce here instead of each ;)
so
```
renames = addons.reduce({}) do |res, addon|
  if addon.former_identifier && addon.identifier != addon.former_identifier
    res[addon.former_identifier] = addon.identifier
  end
  res
end
```