Update CHANGELOG for #15457

CHANGELOG.md

@@ -49,6 +49,7 @@ BUG FIXES
 * resource/aws_acm_certificate: Prevent unexpected timeout error on deletion due to API retries [GH-15522]
 * resource/aws_codestarnotifications_notification_rule: Prevent unexpected timeout error during target deletion due to API retries [GH-15523]
 * resource/aws_config_remediation_configuration: Prevent unexpected timeout error on deletion due to API retries [GH-15524]
+* resource/aws_ecs_cluster: Prevent IAM Service Linked Role error on first ECS provision [GH-15457]
 * resource/aws_emr_managed_scaling_policy: Ensure `cluster_id` attribute is properly saved during import [GH-15541]
 * resource/aws_emr_managed_scaling_policy: Handle additional cases where resource should be removed from Terraform state [GH-15541]
 * resource/aws_gamelift_fleet: Prevent unexpected timeout error on creation due to API retries [GH-15526]