[3.12] gh-107659: Improve wording of the description of `ctypes.pointer` and `ctypes.POINTER` (GH-107769) (#108163)

gh-107659: Improve wording of the description of `ctypes.pointer` and `ctypes.POINTER` (GH-107769)
(cherry picked from commit beffb30dc7a07044f4198245d049ddda1f4b24db)

Co-authored-by: Tomas R <tomas.roun8@gmail.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>