With the recent addition of literal-types to QueryBuilder (#327), I'm getting warnings when passing class-string there: Parameter #1 $from of method Doctrine\ORM\QueryBuilder::from() expects literal-string, class-string given

This is the simplified example to reproduce the issue:

    /**
     * @param class-string $className
     */
    public function getSortable(
        string $className,
    ): ?Sortable
    {
        return $this
            ->entityManager
            ->createQueryBuilder()
            ->select('sortable')
            ->from($className, 'sortable')
            ->getQuery()
            ->getOneOrNullResult();
    }

What is do you think is the correct way to handle this? To me it seems that class-string is more specific type than the literal-string.

cc @VincentLanglet