Harfbuzz, libXML2, libgpg-error, SDL, libgcrypt, nettle, GnuTLS updates

The following projects have been updated:

• Harfbuzz was updated to 9.0.0
• libXML2 was updated to 2.12.8 then to 2.13.0 then 2.13.1
• libgpg-error was updated to 1.50.
• SDL was updated to 2.30.4.
• libgcrypt was updated to 1.11.0.
• nettle was updated to 3.10.
• GnuTLS was updated to 3.8.4.

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.