Infracost reports that aws/eks-private-cluster would costs whopping $438/m for just control plane due to old 1.25 k8s version

[telecomprofi]

/aws/eks-private-cluster [main] $ infracost breakdown --path=.
INFO Autodetected 1 Terraform project across 1 root module
INFO Found Terraform project main at directory .

Project: main

 Name                                                  Monthly Qty  Unit   Monthly Cost

 aws_eks_cluster.k8squickstart-eks
 └─ EKS cluster (extended support)                             730  hours       $438.00

 aws_eks_node_group.worker-node-group
 ├─ Instance usage (Linux/UNIX, on-demand, t3.xlarge)          730  hours       $121.47
 └─ Storage (general purpose SSD, gp2)                          20  GB            $2.00

 OVERALL TOTAL                                                                 $561.47

*Usage costs can be estimated by updating Infracost Cloud settings, see docs for other options.

──────────────────────────────────
13 cloud resources were detected:
∙ 2 were estimated
∙ 11 were free

┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Project                                            ┃ Baseline cost ┃ Usage cost* ┃ Total cost ┃
┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━╋━━━━━━━━━━━━┫
┃ main                                               ┃          $561 ┃           - ┃       $561 ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━┻━━━━━━━━━━━━┛

comparing to the ./eks/ cluster that uses more recent 1.31

/aws/eks [main] $ infracost breakdown --path=.
INFO Autodetected 1 Terraform project across 1 root module
INFO Found Terraform project main at directory .

Project: main

 Name                                            Monthly Qty  Unit   Monthly Cost

 aws_eks_cluster.k8squickstart-eks
 └─ EKS cluster                                          730  hours        $73.00

 aws_eks_node_group.worker-node-group
 ├─ Instance usage (Linux/UNIX, spot, t3.small)        2,190  hours        $17.52
 └─ Storage (general purpose SSD, gp2)                    60  GB            $6.00

 OVERALL TOTAL                                                            $96.52

*Usage costs can be estimated by updating Infracost Cloud settings, see docs for other options.

──────────────────────────────────
13 cloud resources were detected:
∙ 2 were estimated
∙ 11 were free

┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Project                                            ┃ Baseline cost ┃ Usage cost* ┃ Total cost ┃
┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━━━╋━━━━━━━━━━━━━╋━━━━━━━━━━━━┫
┃ main                                               ┃           $97 ┃           - ┃        $97 ┃
┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━┻━━━━━━━━━━━━┛

so that stack might benefit from adding k8s version variable or just hardcoding newer 1.31 one