[bullet3] Add support for OSX arm triplet

[JackBoosY]

bullet3 can be built successfully on arm64-osx, enable this triplet.
Cannot test arm64-linux because there is no arm-linux machine.

Fixes #21091.

[github-actions]

You have modified or added at least one portfile where deprecated functions are used.

Details

If you feel able to do so, please consider migrating them to the new functions:
vcpkg_install_cmake -> vcpkg_cmake_install (from port vcpkg-cmake)
vcpkg_build_cmake -> vcpkg_cmake_build (from port vcpkg-cmake)
vcpkg_configure_cmake -> vcpkg_cmake_configure (Please remove the option PREFER_NINJA) (from port vcpkg-cmake)
vcpkg_fixup_cmake_targets -> vcpkg_cmake_config_fixup (from port vcpkg-cmake-config)

In the ports that use the new function, you have to add the corresponding dependencies:

{
  "name": "vcpkg-cmake",
  "host": true
},
{
  "name": "vcpkg-cmake-config",
  "host": true
}

The following files are affected:

• ports/bullet3/portfile.cmake