fix(select): observable for label change

[aesteves60]

Not work juste with childList, test e2e ok but not work on React App without the fix.
I try on a React App :

const App = () => {
    const [list, setList] = useState([
        { value: "1", label: "1" },
        { value: "2", label: "2" },
        { value: "3", label: "3" },
    ])
    
    function update() {
        setList(list.map(item => ({ ...item, label: item.label + 'test'})));
    }
   
    return (
        <div>
            <OsdsSelect>
                { list.map((item) => <OsdsSelectOption key={item.value} value={item.value} >{item.label}</OsdsSelectOption>) }
            </OsdsSelect>

            <button onClick={() => update()}>test</button>
        </div>
    )
}