v1.17.0

• Add support for Python 3.13.
  • Free-threaded CPython builds (i.e. python3.13t and the 3.13t ABI) are not currently supported.
• In API mode, when you get a function from a C library by writing
  fn = lib.myfunc, you get an object of a special type for performance
  reasons, instead of a <cdata 'C-function-type'>. Before version 1.17
  you could only call such objects. You could write
  ffi.addressof(lib, "myfunc") in order to get a real <cdata> object,
  based on the idea that in these cases in C you'd usually write &myfunc
  instead of myfunc. In version 1.17, the special object
  lib.myfunc can now be passed in many places where CFFI expects
  a regular <cdata> object. For example, you can now pass
  it as a callback to a C function call, or write it inside a C
  structure field of the correct pointer-to-function type, or use
  ffi.cast() or ffi.typeof() on it.

Full Changelog: v1.16.0...v1.17.0