Disabled form-floating input uses wrong colour

Created by: lonix1

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

A disabled form-floating input uses the wrong colour.

Reduced test cases

Demo shows:

• disabled input in grey - correct
• disabled form-floating input in black - incorrect

https://codepen.io/vwhzvdkyrlmuapzyih/pen/MWXgVmm

What operating system(s) are you seeing the problem on?

Linux

What browser(s) are you seeing the problem on?

Firefox

What version of Bootstrap are you using?

5.2.2