* externals: update catch2 from v3.3.2 to v3.5.3
* externals: update zstd from v1.5.5 to v1.5.6
* externals: update xbyak from v6.68 to v7.06
* externals: update soundtouch from 2.3.2 to 2.3.3
* externals: update oaknut from 2.0.2 to HEAD
* externals: update sdl2 from 2.25.5 to 2.30.1
* externals: update cubeb to HEAD
* externals: update openal-soft from 1.23.1 to HEAD
* externals: update nihstro to HEAD
* externals: update lodepng to HEAD
* externals: update libyuv to HEAD
* externals: update faad2 from 2.11.0 to HEAD
* externals: update enet to HEAD
* externals: update cpp-jwt to HEAD
* externals: update inih from r56 to r58
* externals: update libusb from 1.0.27-rc2 to 1.0.27
* externals: update getopt from 1.0-2015.06.19 to 1.1-2022.09.25
* externals: update httplib from v0.11.2 to v0.14.3
* externals: update json from 3.11.2 to 3.11.3
* externals: update fmt from 10.1.1 to 10.2.1
* externals: update dynarmic from 6.6.2 to 6.7.0-HEAD
We can place the external in an inner folder and manage the custom files
necessary to integrate it with CMake directly. This allows us to
directly change how we use it with our build system, as opposed to
needing to change a fork.
