Added doc target for Linux

Author: doxygen

.github/workflows/build-doxygen.yml

@@ -449,6 +449,7 @@ jobs:
           -DQt6Core_DIR="${{ github.workspace }}/qt6-install/lib/cmake/Qt6Core" \
           -DQt6Gui_DIR="${{ github.workspace }}/qt6-install/lib/cmake/Qt6Gui" \
           -DQt6Widgets_DIR="${{ github.workspace }}/qt6-install/lib/cmake/Qt6Widgets" \
+          -Dbuild_doc=YES \
           -Dbuild_search=YES \
           -Dbuild_wizard=YES \
           -Duse_libclang=YES \