[docs] [issue42781] functools.cached_property docs should explain that it is non-overriding

Change by miss-islington <mariatta.wijaya+miss-islington@gmail.com>: ---------- nosy: +miss-islington nosy_count: 3.0 -> 4.0 pull_requests: +22876 pull_request: https://github.com/python/cpython/pull/24035 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue42781> _______________________________________