`Stack` `gap` is overridden on wider layouts

[iansan5653]

Description

When Stack is rendered on a screen greater than 87.5rem wide, the gap between items is always overridden to 1rem - even if the gap is set to none or condensed.

https://github.com/primer/react/assets/2294248/2cf5df8f-0b92-4948-ac29-42549203507f

Steps to reproduce

<Stack gap="none">
  <span>A</span>
  <span>B</span>
</Stack>

Version

36.17.0

Browser

No response