fix: Consider count for output

terraform/modules/docker-network/outputs.tf

@@ -24,7 +24,10 @@ output "worker_node_details" {
 
 output "loadbalancer_details" {
   value = {
-    ipv4 = hcloud_load_balancer.docker.ipv4
-    ipv6 = hcloud_load_balancer.docker.ipv6
+    for idx, instance in hcloud_load_balancer.docker :
+    "loadbalancer-${idx}" => {
+      ipv4 = instance.ipv4
+      ipv6 = instance.ipv6
+    }
   }
 }