Merge topic 'flake8-sphinx' adbc8c982d Utilities/Sphinx: Fix flake8 gripes in cmake.py 9fab1ad504 Utilities/Sphinx: Use f-strings in cmake.py cef51925a4 Utilities/Sphinx: Require Sphinx 2.x or later Acked-by: Kitware Robot <kwrobot@kitware.com> Acked-by: Alex <leha-bot@yandex.ru> Merge-request: !8324