RFR: 8362079: Change JavaFX release version to 26

[Andy Goryachev]

On Mon, 14 Jul 2025 14:18:07 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Bump the version number of JavaFX to 26. I will integrate this to master as part of forking the jfx25 stabilization branch, which is scheduled for Thursday, July 17, 2025 at 16:00 UTC.

changes are in the same places as in #1673

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Marked as reviewed by angorya (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1847#pullrequestreview-3016669246