fix: API error when disabling EKS Auto Mode

[CEikermann]

Description

Fixes the API error 400 when disabling the EKS Auto Mode

Motivation and Context

When disabling the EKS Auto Mode, the AWS API is returning with a 400 error

│ Error: updating EKS Cluster (***) compute config: operation error EKS: UpdateClusterConfig, https response error StatusCode: 400, RequestID: 2a4498b9-8469-42e8-8712-b22c5a5930b2, InvalidParameterException: The type for cluster update was not provided.
│
│   with module.eks_cluster1.aws_eks_cluster.this[0],
│   on .terraform/stage/modules/eks_cluster1/main.tf line 35, in resource "aws_eks_cluster" "this":
│   35: resource "aws_eks_cluster" "this" {

Pending change from terroform apply:

  # module.eks_cluster1.aws_eks_cluster.this[0] will be updated in-place
  ~ resource "aws_eks_cluster" "this" {
        id                            = "stage-cluster1"
        name                          = "stage-cluster1"
        tags                          = {
            "terraform-aws-modules" = "eks"
        }
        # (12 unchanged attributes hidden)

      - storage_config {
          - block_storage {
              - enabled = false -> null
            }
        }

        # (7 unchanged blocks hidden)
    }

Looks like the change back to null is causing the API error 400, if its always set to false it works as intended

Breaking Changes

Should not, as its the same approach like in compute_config

How Has This Been Tested?

• Create a cluster with EKS Auto Mode enabled
• Disable the EKS Auto mode

[bryantbiggs]

thank you but this is not correct

[github-actions]

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