chore: Update module versions in acm example (#1308)

* Update version to 21.2 to fix the exception of node pool of terraform example

* Update the gke module version to latest in the examples

* Update the terraform provider version for google-beta

Co-authored-by: Bharath KKB <[email protected]>

Author: Abhisek Purwar

examples/acm-terraform-blog-part1/terraform/gke.tf

@@ -31,7 +31,7 @@ module "enabled_google_apis" {
 
 module "gke" {
   source             = "terraform-google-modules/kubernetes-engine/google"
-  version            = "~> 16.0"
+  version            = "~> 21.2"
   project_id         = module.enabled_google_apis.project_id
   name               = "sfl-acm-part1"
   region             = var.region

examples/acm-terraform-blog-part2/terraform/gke.tf

@@ -31,7 +31,7 @@ module "enabled_google_apis" {
 
 module "gke" {
   source             = "terraform-google-modules/kubernetes-engine/google"
-  version            = "~> 16.0"
+  version            = "~> 21.2"
   project_id         = module.enabled_google_apis.project_id
   name               = "sfl-acm-part2"
   region             = var.region

examples/acm-terraform-blog-part3/terraform/gke.tf

@@ -33,7 +33,7 @@ module "enabled_google_apis" {
 
 module "gke" {
   source             = "terraform-google-modules/kubernetes-engine/google//modules/beta-public-cluster"
-  version            = "~> 16.0"
+  version            = "~> 21.2"
   project_id         = module.enabled_google_apis.project_id
   name               = "sfl-acm-part3"
   region             = var.region
@@ -48,7 +48,7 @@ module "gke" {
 
 module "wi" {
   source              = "terraform-google-modules/kubernetes-engine/google//modules/workload-identity"
-  version             = "~> 16.0.1"
+  version             = "~> 21.2"
   gcp_sa_name         = "cnrmsa"
   cluster_name        = module.gke.name
   name                = "cnrm-controller-manager"

examples/acm-terraform-blog-part3/terraform/providers.tf

@@ -18,7 +18,7 @@ terraform {
   required_providers {
     google-beta = {
       source  = "hashicorp/google-beta"
-      version = "3.73.0"
+      version = "4.27.0"
     }
   }
 }