chore(deps): update terraform cloudposse/nlb/aws to v0.18.1

Author: renovate[bot]

src/nlb.tf

@@ -1,6 +1,6 @@
 module "nlb" {
   source  = "cloudposse/nlb/aws"
-  version = "0.12.0"
+  version = "0.18.1"
   count   = var.enable_private_link_nlb ? 1 : 0
 
   enabled = local.enabled