gh-89653: PEP 670: Use PyObject* type for parameters (GH-92694)

Use the PyObject* type for parameters of static inline functions:

* Py_SIZE(): same parameter type than PyObject_Size()
* PyList_GET_SIZE(), PyList_SET_ITEM(): same parameter type than
  PyList_Size() and PyList_SetItem()
* PyTuple_GET_SIZE(), PyTuple_SET_ITEM(): same parameter type than
  PyTuple_Size() and PyTuple_SetItem().
(cherry picked from commit 6de78ef96afbaa127472bb9dc0a4e41e44555d00)

Co-authored-by: Victor Stinner <vstinner@python.org>