Appsync async lambda invocation funtionality in GEN2

Describe the feature you'd like to request

AWS AppSync now supports long running events with asynchronous Lambda function invocations. it is great to have this feature available in GEN2. Please see the the official announcement. https://aws.amazon.com/about-aws/whats-new/2024/05/aws-appsync-events-asynchronous-lambda-function-invocations/

Describe the solution you'd like

Currently, users could only invoke Lambda functions synchronously from AppSync, which meant that the GraphQL API would wait for the Lambda function to complete before returning a response. With the recent support of event mode in appsync it will be great to have this functionality in GEN2 as well.

Describe alternatives you've considered

We can still invoke the lambda function asynchronously using the lambda invocation type "Event" but need to handle the logic ourself instead of passing the mode event directly from the client side.

Something like this

 await lambda
      .invoke({
        FunctionName: context.functionName,
        InvocationType: "Event",
        Payload: JSON.stringify({
          arguments: {
            content: "submitted async from lambda",
            invokeType: "lambda",
            filePaths: event.arguments.filePaths,
          },
        }),
      })
      .promise();

    return {
      message: "Lambda function submitted"
    };

Additional context

No response

Is this something that you'd be interested in working on?

[ ] 👋 I may be able to implement this feature request

Would this feature include a breaking change?

[ ] ⚠️ This feature might incur a breaking change

aws-amplify / amplify-category-api