chore(deps): update dependency hashicorp/terraform to v1.6.4 (#1840)

Signed-off-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

playbooks/pre.yml

@@ -12,7 +12,7 @@
     terraform_path: "{{ basepath }}/terraform"
     terragrunt_version: v0.53.3 # renovate: datasource=github-releases depName=gruntwork-io/terragrunt
     terragrunt_download_url: "https://github.com/gruntwork-io/terragrunt/releases/download/{{ terragrunt_version }}/terragrunt_linux_amd64"
-    terraform_version: 1.6.3 # renovate: datasource=github-tags depName=hashicorp/terraform
+    terraform_version: 1.6.4 # renovate: datasource=github-tags depName=hashicorp/terraform
 
   tasks:
     - name: Set cloud_env fact (Zuul deployment)