Bump terraform-aws-modules/eks/aws

Bumps [terraform-aws-modules/eks/aws](https://github.com/terraform-aws-modules/terraform-aws-eks) from 19.21.0 to 20.15.0.
- [Release notes](https://github.com/terraform-aws-modules/terraform-aws-eks/releases)
- [Changelog](https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/CHANGELOG.md)
- [Commits](terraform-aws-modules/terraform-aws-eks@v19.21.0...v20.15.0)

---
updated-dependencies:
- dependency-name: terraform-aws-modules/eks/aws
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

terraform/environments/data-platform-apps-and-tools/eks-cluster.tf

@@ -5,7 +5,7 @@ module "eks" {
   #checkov:skip=CKV_TF_1:Module is from Terraform registry
 
   source  = "terraform-aws-modules/eks/aws"
-  version = "19.21.0"
+  version = "20.15.0"
 
   cluster_name    = local.environment_configuration.eks_cluster_name
   cluster_version = local.environment_configuration.eks_versions.cluster