Return a HTTP error code instead of Internal Server Error

[sebsto]

Problem
When there is an error in the Lambda function, the API Gateway returns a generic error "Internal Server Error"

Root cause

The function handle(Event:Lambdacontext) here

func handle(_ request: Event, context: LambdaContext) async throws -> Output {

passes errors to the Lambda Runtime.

Possible solution

Manage errors in the handle(::) function and convert them in corresponding HTTP Error codes.

[sebsto]

Fix with 790e571