Formatter: Trailing comment on list gets formatted to a separate line

Given:

```python
[  # comment
    first,
    second,
    third
]  # another comment
```

Notice that there's no magic trailing comma, so the list will be collapsed.

Ruff:

```python
[first, second, third]  # comment
  # another comment
```

Black:

```python
[first, second, third]  # comment  # another comment
```