[3.11] bpo-40648: Test modes that file can get with chmod() on Windows (GH-20130) (GH-113069)

Order of tests matter second part makes testing file writable and
possible to remove again.
(cherry picked from commit f5c05e015c178975f24b77e5a8975a22d694e019)

Co-authored-by: Pavol Babinčák‏ <scroolik@gmail.com>