chore: switch nginx main task to use template

roles/nginx/tasks/main.yaml

@@ -17,8 +17,8 @@
     mode: '0755'
 
 - name: Copy over nginx.container file
-  ansible.builtin.copy:
-    src: ./files/nginx.container
+  ansible.builtin.template:
+    src: ./templates/nginx.container.j2
     dest: /etc/containers/systemd/nginx.container
     owner: root
     group: root