Add terraform refresh to destroy eks_components (#1373)

This is to fix the authentication error, caused by this issue:
hashicorp/terraform-provider-kubernetes#1131

destroy-cluster.rb

@@ -193,6 +193,9 @@ def terraform_eks_components
     dir = "terraform/aws-accounts/cloud-platform-aws/vpc/eks/components"
     tf_init dir
     tf_workspace_select(dir, cluster_name)
+    # terraform refresh until this issue get fixed for terraform-provider-kubernetes
+    # https://github.com/hashicorp/terraform-provider-kubernetes/issues/1131
+    tf_refresh(dir)
     tf_destroy(dir)
   end
 
@@ -241,6 +244,10 @@ def tf_init(dir)
     execute "cd #{dir}; terraform init"
   end
 
+  def tf_refresh(dir)
+    execute "cd #{dir}; terraform refresh"
+  end
+
   def tf_workspace_select(dir, workspace)
     execute "cd #{dir}; terraform workspace select #{workspace}"
   end