fix: dynamic paths in rendered_files + HTTPS module source for CodeBuild

- Replace placeholder paths (environment/region/vpc/cluster/) with
  var.environment / var.region / var.cluster_config.vpc_name / var.name
  so managed_extra_files land in the correct Terragrunt hierarchy
- Change CSVD/terraform-github-repo source from SSH (git@) to HTTPS
  (git::https://) to work inside CodeBuild without SSH agent

main.tf

@@ -33,23 +33,23 @@ locals {
     "root.hcl" : templatefile("${path.module}/templates/root.hcl.tf.tpl", {
       environment = var.environment
     }),
-    "environment/account.hcl" : templatefile("${path.module}/templates/account.hcl.tf.tpl", {
+    "${var.environment}/account.hcl" : templatefile("${path.module}/templates/account.hcl.tf.tpl", {
       account_name     = var.cluster_config.account_name,
       aws_account_id   = var.cluster_config.aws_account_id,
       environment      = var.environment,
       environment_abbr = var.cluster_config.environment_abbr
     }),
-    "environment/region/region.hcl" : templatefile("${path.module}/templates/region.hcl.tf.tpl", {
+    "${var.environment}/${var.region}/region.hcl" : templatefile("${path.module}/templates/region.hcl.tf.tpl", {
       aws_region  = var.region,
       environment = var.environment
     }),
-    "environment/region/vpc/vpc.hcl" : templatefile("${path.module}/templates/vpc.hcl.tf.tpl", {
+    "${var.environment}/${var.region}/${var.cluster_config.vpc_name}/vpc.hcl" : templatefile("${path.module}/templates/vpc.hcl.tf.tpl", {
       vpc_name        = var.cluster_config.vpc_name,
       vpc_domain_name = var.cluster_config.vpc_domain_name,
       environment     = var.environment,
       aws_region      = var.region
     }),
-    "environment/region/vpc/cluster/cluster.hcl" : templatefile("${path.module}/templates/cluster.hcl.tf.tpl", {
+    "${var.environment}/${var.region}/${var.cluster_config.vpc_name}/${var.name}/cluster.hcl" : templatefile("${path.module}/templates/cluster.hcl.tf.tpl", {
       cluster_name                             = var.name,
       cluster_mailing_list                     = var.cluster_config.cluster_mailing_list,
       aws_profile                              = local.aws_profile,
@@ -74,7 +74,7 @@ locals {
 }
 
 module "github_repo" {
-  source = "git::git@github.e.it.census.gov:CSVD/terraform-github-repo.git"
+  source = "git::https://github.e.it.census.gov/CSVD/terraform-github-repo.git"
 
   name                    = var.name
   repo_org                = var.organization