Update Terraform cloudposse/module-artifact/external to v0.6.1 (#33)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

main.tf

@@ -98,7 +98,7 @@ module "label" {
 
 module "artifact" {
   source      = "cloudposse/module-artifact/external"
-  version     = "0.5.0"
+  version     = "0.6.1"
   enabled     = module.this.enabled
   filename    = "lambda.zip"
   module_name = "terraform-aws-lambda-elasticsearch-cleanup"