readonly inputs don't get grayed out anymore in v5.2.3

[ak274]

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

after updating the ui of my project from 5.1.3 to latest.

I have noticed that readonly fields which used to be grayed out earlier are not getting grayed out anymore.

Reduced test cases

<textarea [readOnly]="isDirectoryActive" class="form-control form-control-sm" formControlName="includeDirectories"
id="includeDirectories"></textarea>

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

Windows

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

Chrome

What version of Bootstrap are you using?

v5.2.3

[mdo]

#36499