chore(deps): update terraform cloudposse/platform/datadog to v1.5.1 (#18)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/main.tf

@@ -5,7 +5,7 @@ locals {
 
 module "datadog_child_organization" {
   source  = "cloudposse/platform/datadog//modules/child_organization"
-  version = "1.5.0"
+  version = "1.5.1"
 
   organization_name = var.organization_name