Tuplet numbers collide with articulations when notes are slurred

[Nate Whetsell]

Hi there,

Thanks for all your work on LilyPond!

When notes in a tuplet are slurred, tuplet numbers can collide with 
articulations that appear above notes. When notes in a tuplet aren’t slurred, 
tuplet numbers appear above articulations. Here’s an example that illustrates 
the behavior:

```
\version "2.22.1"
{
  \tuplet 3/2 4 { a'8 a'-+ a' a'( a'-+ a') }
}
```

It seems like the vertical position of the tuplet numbers should be the same.

(I also tried this using the latest version from the Git repo, and the behavior 
is the same.)

All the best,
Nate