[jfx25u] RFR: 8368572: Update WebKit to 623.1

[Jose Pereda]

On Thu, 22 Jan 2026 20:07:22 GMT, Johan Vos <jvos at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [422d3a95](https://github.com/openjdk/jfx/commit/422d3a954d531c9cca32b1401b5937b05b1b07fa) from the [openjdk/jfx](https://git.openjdk.org/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.
> 
> Thanks!

Marked as reviewed by jpereda (Reviewer).

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PR Review: https://git.openjdk.org/jfx25u/pull/46#pullrequestreview-3696647952