[3.12] gh-102304: Rename _Py_IncRefTotal_DO_NOT_USE_THIS() (GH-107193) (#107199)

gh-102304: Rename _Py_IncRefTotal_DO_NOT_USE_THIS() (GH-107193)

* Rename _Py_IncRefTotal_DO_NOT_USE_THIS() to _Py_INCREF_IncRefTotal()
* Rename _Py_DecRefTotal_DO_NOT_USE_THIS() to _Py_DECREF_DecRefTotal()
* Remove temporary _Py_INC_REFTOTAL() and _Py_DEC_REFTOTAL() macros
(cherry picked from commit 8ebc9fc321ba1eeb3282c2170f351c54956893e6)

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