fix: fixed module versions

Author: pawan1210

examples/internal-lb-cloud-run/main.tf

@@ -95,8 +95,8 @@ module "backend-service-region-b" {
 }
 
 module "internal-lb-http-backend" {
-  source  = "terraform-google-modules/lb-http/google//modules/frontend"
-  version = "~> 12.1.1"
+  source  = "terraform-google-modules/lb-http/google//modules/backend"
+  version = "~> 12.0"
 
   project_id            = var.project_id
   name                  = "int-lb-http-backend"
@@ -111,7 +111,7 @@ module "internal-lb-http-backend" {
 
 module "internal-lb-http-frontend" {
   source  = "terraform-google-modules/lb-http/google//modules/frontend"
-  version = "~> 12.1.1"
+  version = "~> 12.0"
 
   project_id            = var.project_id
   name                  = "int-lb-http-frontend"