uploading to S3

UploadS3.cs

        public async Task UploadArtifact(S3Config config, IAmazonS3 s3Client)
        {
            using(var utility = new TransferUtility(s3Client))
            {
                Console.WriteLine($"Uploading artifact {config.ArtifactRelativePath} {config.Key}");
                await utility.UploadAsync(filePath: config.ArtifactRelativePath, bucketName: config.S3Bucket, key: config.Key);
            }
        }