Is it possible to test LambdaFunctionURL lambdas with aws-lambda-rie ?

I have a 2 lambdas:
* One that take a `CloudWatchEvent` as the second argument of the `Handle()`function
* One that take a `LambdaFunctionURLRequest`as the second argument of the `Handle()`function

I'm able to successfully test with `aws-lambda-rie`the first Lambda but not the second one

Even with a quite naive handler:
```
func Handle(ctx context.Context, request events.LambdaFunctionURLRequest) error {
log.Printf("body: %s", request.RawPath)
return nil
}
```

Is it possible to test this "new" kind of lambdas using `aws-lambda-runtime` ? Am I doing something wrong ?

首先，使用 Go Handle 函数通过 aws-lambda-rie 重现该请求，并比较 CloudWatchEvent 和 LambdaFunctionURLRequest 两种情况。该 issue 没有指定任何 repository 文件或测试；完成意味着确认是否支持 LambdaFunctionURLRequest，并记录或实现所需的行为。

由索引模型根据 Issue 内容生成。