Update docker.io/library/postgres Docker tag to v18

roles/docker_compose/defaults/main.yaml

@@ -1,3 +1 @@
-docker_compose__build: always
 docker_compose__configuration_files: [ ]
-docker_compose__pull: always

roles/docker_compose/tasks/main.yaml

@@ -79,8 +79,8 @@
   community.docker.docker_compose_v2:
     project_src: /ansible_docker_compose
     state: present
-    build: "{{ docker_compose__build }}"
+    build: always
-    pull: "{{ docker_compose__pull }}"
+    pull: always
     remove_orphans: true
   become: true