fix: random_pet with LT workers under 0.13.0 (#940)

Fix for:
Error: Provider produced inconsistent final plan

When expanding the plan for module.eks.random_pet.workers_launch_template[0]
to include new values learned so far during apply, provider
"registry.terraform.io/hashicorp/random" changed the planned action from
CreateThenDelete to DeleteThenCreate.

.gitignore

@@ -11,3 +11,4 @@ eks-admin-service-account.yaml
 *.iml
 config-map-aws-auth*.yaml
 kubeconfig_*
+*.swp

workers_launch_template.tf

@@ -476,6 +476,9 @@ resource "random_pet" "workers_launch_template" {
       )
     )
   }
+  lifecycle {
+    create_before_destroy = true
+  }
 }
 
 resource "aws_iam_instance_profile" "workers_launch_template" {