Harfbuzz, zlib, libXML2, SDL, GnuTLS, GnuTLS, libSSH, libVPX updates

The following projects have been updated:

• ffmpeg was updated to 7.0.
• Harfbuzz was updated to 8.3.1 then to 8.4.0.
• zlib was updated to 1.3.1.
• libXML2 was updated to 2.12.4 then to 2.12.5 then to 2.12.6.
• SDL was updated to 2.30.0 then to 2.30.1 then to 2.30.2.
• GnuTLS was updated to 3.8.3.
• libSSH was updated to 0.10.6.
• libVPX was updated to 1.14.0.
• FFVS-Project-Generator was updated to 1.11.9.

Any projects that have a dependency that was updated has also been updated to build with the latest versions of the new libraries as well.