cad/freecad: fix build without webengine
CMake Error at /usr/local/lib/cmake/Qt5/Qt5Config.cmake:28 (find_package):
Could not find a package configuration file provided by "Qt5WebEngineWidgets" with any of the following names: Qt5WebEngineWidgetsConfig.cmake qt5webenginewidgets-config.cmake Add the installation prefix of "Qt5WebEngineWidgets" to CMAKE_PREFIX_PATH or set "Qt5WebEngineWidgets_DIR" to a directory containing one of the above files. If "Qt5WebEngineWidgets" provides a separate development package or SDK, be sure it has been installed.
Call Stack (most recent call first):
cMake/FreeCAD_Helpers/SetupQt.cmake:31 (find_package) CMakeLists.txt:78 (include)