chore: normalize quote style in playbooks

Standardize single quotes to double quotes for consistency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

playbooks/destroy.yml

@@ -6,7 +6,7 @@
   tasks:
     - name: Destroy Terraform.
       community.general.terraform:
-        project_path: '../terraform'
+        project_path: "../terraform"
         state: "absent"
         init_reconfigure: true
         force_init: true