git: openjdk/jfx21u: master: 8320267: WebView crashes on macOS 11 with WebKit 616.1

[Kevin Rushforth]

Changeset: 55ac7f07
Author:    Kevin Rushforth <kcr at openjdk.org>
Date:      2023-11-30 15:07:42 +0000
URL:       https://git.openjdk.org/jfx21u/commit/55ac7f077adca3cee32add7a1050482272acdb84

8320267: WebView crashes on macOS 11 with WebKit 616.1

Backport-of: 0d3341704c1ced4f61b5f7f7618e23ec182ae379

! modules/javafx.web/src/main/native/Source/WTF/wtf/PlatformJSCOnly.cmake
! modules/javafx.web/src/main/native/Source/WTF/wtf/threads/Signals.cpp