Please support forwardRef or options for Dropdown component

What problem does this feature solve?

Dropdown should supporting forwardRef to use ref in this component. Adding this feature allows us to be able to trigger a onMenuClick by clicking to custom menu with dropdownRender prop.

What does the proposed API look like?

const myRef = useRef(null);

<Dropdown 
    ref={myRef} 
    dropdownRender={(overlayNode, triggerMenuClick) => (  // or also can provide triggerMenuClick here to instead of ref
       <div className="my-custom-dropdown-without-menu-prop"> // using custom dropdown without menu prop
             <a 
                 className="item-dropdown" 
                 onClick={() => myRef.current.triggerMenuClick}  // trigger close dropdown after clicking
             >
                    React
             </a>
             <a className="item-dropdown">Ant Design</a>
       </div>
    )}
    {...props} 
/>

Hope AntD team will reproduce it by what i provided in next release version

[afc163]

Please control visibility by open and onOpenChange.

[phatify]

@afc163 Can you reopen this issue?