```release-note:enhancement
resource/aws_appmesh_virtual_node: Add `spec.backend.virtual_service.client_policy.tls.certificate`, `spec.backend.virtual_service.client_policy.tls.validation.subject_alternative_names`, `spec.backend_defaults.client_policy.tls.certificate`, `spec.backend_defaults.client_policy.tls.validation.subject_alternative_names`, `spec.listener.tls.certificate` and `spec.listener.tls.validation.subject_alternative_names` attributes to support mutual TLS authentication
```

```release-note:enhancement
resource/aws_appmesh_virtual_node: Add `spec.backend.virtual_service.client_policy.tls.validation.trust.sds`, `spec.backend_defaults.client_policy.tls.validation.trust.sds` and `spec.listener.tls.validation.trust.sds` attributes to support Envoy Service Discovery Service certificates
```
