Broken rendering with some fonts (vertical stretching of the last pixels)

[ghost]

Description

With some fonts the rendering looks as if the first pixels and the last pixels (vertically) are stretched, which results in broken rendering.
I could reproduce this issue with the "Algerian" font and the "Stencil" font in the rich-text example.

Steps to reproduce

Take the "rich-text" example and e.g. replace the line which sets the attributes for comic-sans with
let comic_attrs = attrs.family(Family::Name("Algerian")).stretch(cosmic_text::Stretch::ExtraCondensed);
or
let comic_attrs = attrs.family(Family::Name("Stencil"));

How does it look like

This looks especially spectacular with the "Algerian" font.
Algerian:

but is also visible with "Stencil"
Stencil:

[dfrg]

Ouch! This is almost certainly a swash problem. Thanks for reporting. I’ll look into it.

[dfrg]

This should be fixed with swash 0.1.17.

[jackpot51]

Thanks @dfrg!

[jackpot51]

@petersupansectra please test this after using cargo update to get the new swash crate