docs: Bump IRSA example dependencies to versions which work with TF 0.14 (#1184)

Author: lukemarsden

examples/irsa/irsa.tf

@@ -1,6 +1,6 @@
 module "iam_assumable_role_admin" {
   source                        = "terraform-aws-modules/iam/aws//modules/iam-assumable-role-with-oidc"
-  version                       = "2.14.0"
+  version                       = "3.6.0"
   create_role                   = true
   role_name                     = "cluster-autoscaler"
   provider_url                  = replace(module.eks.cluster_oidc_issuer_url, "https://", "")

examples/irsa/main.tf

@@ -41,7 +41,7 @@ data "aws_caller_identity" "current" {}
 
 module "vpc" {
   source               = "terraform-aws-modules/vpc/aws"
-  version              = "2.47.0"
+  version              = "2.64.0"
   name                 = "test-vpc"
   cidr                 = "10.0.0.0/16"
   azs                  = data.aws_availability_zones.available.names