RFR: 8340322: Update WebKit to 620.1

[Johan Vos]

On Mon, 10 Feb 2025 15:27:49 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

> Webkit JavaFx upgrade from 619.1 to 620.1 <br>
> Build is verified in mac , windows and linux. Sanity testing looks fine. No issues seen, except one observed CanvasPattern test where it works only on Linux but failed on Mac/Windows (WIP).
> Windows build is using clang-cl compiler because Webkit has dropped MSVC compiler support.

Marked as reviewed by jvos (Reviewer).

While not relevant for adding this to the main repository, there might be an impact on backports to 17/21 (although we don't expect showstoppers).

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PR Review: https://git.openjdk.org/jfx/pull/1703#pullrequestreview-2609680818
PR Comment: https://git.openjdk.org/jfx/pull/1703#issuecomment-2651704416