RFR: 8301009: Update libxml2 to 2.10.3

[Joeri Sykora]

On Tue, 14 Mar 2023 08:04:04 GMT, Hima Bindu Meda <hmeda at openjdk.org> wrote:

> Updated Libxml2 to v2.10.3. verfied build and sanity testing on windows, mac and Linux platforms.
> No issue observed.

Building and running tests worked on windows, linux and macos.

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Marked as reviewed by sykora (Author).

PR: https://git.openjdk.org/jfx/pull/1058