[jfx17u] RFR: 8368572: Update WebKit to 623.1

[Jose Pereda]

On Thu, 26 Feb 2026 11:32:15 GMT, Johan Vos <jvos at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit 422d3a95 from the openjdk/jfx repository.
> 
> The commit being backported was authored by Hima Bindu Meda on 21 Jan 2026 and was reviewed by Kevin Rushforth, Joeri Sykora and Johan Vos.
> 
> This PR also includes changes to modules/javafx.web/src/test/java/test/javafx/scene/web/LoadTest.java that are required because of the difference in junit versions between jfx17u and jfx
> 
> Thanks!

Marked as reviewed by jpereda (Reviewer).

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PR Review: https://git.openjdk.org/jfx17u/pull/256#pullrequestreview-3860429964