/usr/lib/x86_64-linux-gnu/cmake/ is in libqt5webkit5-dev 5.212.0~alpha2-7ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKit/
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKit/Qt5WebKitConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKit/Qt5WebKitConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKit/WebKitTargets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKit/WebKitTargets.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKitWidgets/
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKitWidgets/Qt5WebKitWidgetsConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKitWidgets/Qt5WebKitWidgetsConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKitWidgets/Qt5WebKitWidgetsTargets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5WebKitWidgets/Qt5WebKitWidgetsTargets.cmake