feat: Drop random pets from Managed Node Groups (#1372)

BREAKING CHANGES: We now decided to remove `random_pet` resources in Managed Node Groups (MNG). Those were used to recreate MNG if something change and also simulate the newly added argument `node_group_name_prefix`. But they were causing a lot of troubles. To upgrade the module without recreating your MNG, you will need to explicitly reuse their previous name and set them in your MNG `name` argument. Please see [upgrade docs](https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/docs/upgrades.md#upgrade-module-to-v1700-for-managed-node-groups) for more details.

data.tf

@@ -1,3 +1,7 @@
+data "aws_partition" "current" {}
+
+data "aws_caller_identity" "current" {}
+
 data "aws_iam_policy_document" "workers_assume_role_policy" {
   statement {
     sid = "EKSWorkerAssumeRole"
@@ -82,8 +86,6 @@ data "aws_iam_instance_profile" "custom_worker_group_launch_template_iam_instanc
   )
 }
 
-data "aws_partition" "current" {}
-
 data "http" "wait_for_cluster" {
   count          = var.create_eks && var.manage_aws_auth ? 1 : 0
   url            = format("%s/healthz", aws_eks_cluster.this[0].endpoint)