Teleskope needs read access to scan and classify your data stored in SQS.
Attach the AmazonSQSReadOnlyAccess to the Teleskope IAM role you created.
resource "aws_iam_role_policy_attachment" "sqs_policy" {
role = "TeleskopeRole"
policy_arn = "arn:aws:iam::aws:policy/AmazonSQSReadOnlyAccess"
}