[12.x] Types: PasswordBroker::reset

[liamduckett]

Hey, this method is currently marked as returning mixed - when it actually returns string.

/**
 * Reset the password for the given token.
 *
 * @param  array  $credentials
 * @param  \Closure  $callback
 * @return mixed
 */
public function reset(#[\SensitiveParameter] array $credentials, Closure $callback)
{
    // $user is CanResetPassword|string
    $user = $this->validateReset($credentials);

    // ...

    if (! $user instanceof CanResetPasswordContract) {
        // $user is string
        return $user;
    }
    
    // ...

    // also a string
    return static::PASSWORD_RESET;
}

I haven't changed the interface, as this PasswordBroker happening to return a string doesn't necessarily (although probably does) mean they all have to.