Upgrade to eks 1.31

Author: marcincuber

terraform/terraform.tfvars

@@ -14,9 +14,9 @@ eks_public_access_cidrs = [
   "0.0.0.0/0"
 ]
 
-eks_version = "1.30"
+eks_version = "1.31"
 
-eks_addon_version_kube_proxy                      = "v1.30.3-eksbuild.5"
+eks_addon_version_kube_proxy                      = "v1.31.0-eksbuild.5"
 eks_addon_version_core_dns                        = "v1.11.3-eksbuild.1"
 eks_addon_version_ebs_csi_driver                  = "v1.34.0-eksbuild.1"
 eks_addon_version_guardduty                       = "v1.7.1-eksbuild.1"