getQueryResultsFromS3 function should be able to support subfolders

[deliverymanager]

If I declare

const athenaExpressConfig = {
  aws,
  s3: "s3://bucket-name/sub-directory/",
  db: process.env.athena_database,
  getStats: true
};

then this functions fails.
Consider replacing with the following:

function getQueryResultsFromS3(params) {
const bucket = params.config.s3Bucket.replace("s3://", "").split("/")[0];
	const s3Params = {
			Bucket: bucket,
			Key: params.s3Output.replace("s3://" + bucket + "/", "")
		}

[ghdna]

Just pushed 3.3.0 that supports sub folders. Good catch!