regression: comment moved in map |> join => map_join

## Versions

* Elixir: use `elixir --version`
* Styler: use `mix deps | grep locked | grep styler`

## Example Input

```elixir
          snip
          |> Enum.map(fn reply ->
            reply_owner_name = snip
            # a comment
            snip
          end)
          |> Enum.join()
```
moved comment to after the rewrite

## Stacktrace / Current Behaviour
