RFR: 8361648: Update Glib to 2.84.3

[Joeri Sykora]

On Tue, 29 Jul 2025 21:02:20 GMT, Alexander Matveev <almatvee at openjdk.org> wrote:

> - GLib updated to 2.84.3.
> - Tested on all platforms.
> - No other changes are done.

I've successfully ran a build on all platforms.

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Marked as reviewed by sykora (Author).

PR Review: https://git.openjdk.org/jfx/pull/1862#pullrequestreview-3079364963