SplitButton: aria-expanded is not updated when clicking outside

[tri-harmoney]

Describe the bug

The aria-expanded attribute is not updated correctly if the menu is closed by clicking outside.

If the split menubutton is clicked the menu opens and the aria-expanded is set to true. If the user now clicks outside or presses esc button, the menu closes but the aria-expanded is not set to false but stays true.

Environment

macOS 14.5 (23F79)

Reproducer

No response

Angular version

17.3.7

PrimeNG version

17.16.1

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

18.13.0

Browser(s)

No response

Steps to reproduce the behavior

1. Click the menu open through the menubutton
2. Close the menu by pressing ESC button or clicking outside the element
3. Check aria-expanded

Expected behavior

aria-expanded should be set to false.