Change from C++17 to C++20 throws compiler errors

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Hello, currently I using ROS melodic with C++17 and I want to update to C++20 in next time. But if I set the new version and compile again I got this error messages:

    /opt/ros/melodic/include/std_msgs/Header.h:46:121: error: no class template named ‘rebind’ in ‘class std::allocator<void>’
   46 |    typedef std::basic_string<char, std::char_traits<char>, typename ContainerAllocator::template rebind<char>::other >  _frame_id_type;

in that lines of code:

inline glm::dmat4x4 transformationMatrixOfPoint(const geometry_msgs::PoseStamped &poseStamped) noexcept
{
    geometry_msgs::Point p = poseStamped.pose.position; // Here is the error
    return transformationMatrixOfPoint(utils::createOrientation(poseStamped.pose.orientation), {p.x, p.y, p.z});
}

I'm also not an expert in C++ so please can you help me. Why does this compiler error come because in C++17 all works. I'm using gcc-10 .