Try enabling precompiled headers in combination with c++20 modules

Author: texus

.github/workflows/ci.yml

@@ -48,6 +48,7 @@ jobs:
           -DTGUI_HAS_BACKEND_GLFW_GLES2=ON
           -DTGUI_HAS_BACKEND_RAYLIB=ON
           -Draylib_USE_STATIC_LIBS=OFF
+
           cmake --build TGUI-build-gcc --config Debug --target install
 
       - name: Build TGUI (clang with c++20 module)