chore(deps): update terraform github.com/cloudposse-terraform-components/aws-datadog-credentials to v1.535.9 (#70)

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

Author: renovate[bot]

src/provider-datadog.tf

@@ -1,5 +1,5 @@
 module "datadog_configuration" {
-  source                  = "github.com/cloudposse-terraform-components/aws-datadog-credentials//src/modules/datadog_keys?ref=v1.535.8"
+  source                  = "github.com/cloudposse-terraform-components/aws-datadog-credentials//src/modules/datadog_keys?ref=v1.535.9"
   enabled                 = true
   context                 = module.this.context
   global_environment_name = var.datadog_configuration_environment