RFR: 8352162: Update libxml2 to 2.13.6 [v2]

[Kevin Rushforth]

On Fri, 18 Apr 2025 14:36:26 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

>> As part of the current WebKit JFX  upgrade, it is required to update libxml and libxslt to compatible versions. Additionally, this release addresses several known issues from the previous version to improve stability and performance.
>
> Jay Bhaskar has updated the pull request incrementally with one additional commit since the last revision:
> 
>   remove un-needed files

> As part of the current WebKit JFX upgrade, it is required to update libxml and libxslt to compatible versions.

The libxml2 and libxslt libraries are used by WebKit, but are updated independently. So this isn't related to the recent WebKit update. Please update the description to remove this, as it could give the incorrect impression that the current libxml2 and libxslt libraries aren't compatible.

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PR Comment: https://git.openjdk.org/jfx/pull/1785#issuecomment-2815579155