aws cleaner: remove cluster at start

Initial implementation assumption was that cluster should be removed
at the end of the cleanup proccess. This allows to restart cleanup
proccess from scratch in case of dependency cleanup issues.

But for some EKS setups we might have ENIs attached directly to a cluster.
That blocks VPC deletion while ENIs exist. The ENIs are deleted
automatically after cluster deletion.
So, I moved cluster drop to the beginning of the proccess.

pkg/aws/cleaner.go

@@ -41,10 +41,6 @@ func DeleteResources(ctx context.Context, accounts []dto.Account, tries int, ret
 						break
 					}
 				}
-				if err == nil {
-					logger.Info("deleting cluster")
-					err = deleteEKS(ctx, cls.EKS, clusterName)
-				}
 				return err
 			})
 		}
@@ -55,6 +51,12 @@ func DeleteResources(ctx context.Context, accounts []dto.Account, tries int, ret
 func deleteVpcAndEks(ctx context.Context, clients *clients, vpcID, clusterName string) error {
 	logger := log.FromContext(ctx)
 	var errs error
+
+	logger.Info("deleting cluster")
+	if err := deleteEKS(ctx, clients.EKS, clusterName); err != nil {
+		errs = multierr.Append(errs, err)
+	}
+
 	logger.Info("listing vpc peering connections")
 	connections, err := listVpcPeeringConnections(ctx, clients.EC2, vpcID)
 	if err != nil {