feat(postgresql): add ansible role for postgresql deployment

roles/postgresql/defaults/main/container.yml

@@ -26,7 +26,7 @@ postgresql_container_image: >-2
     )
   }}
 
-postgresql_container_name: "postgresql-{{ postgresql_major_version }}"
+postgresql_container_name: postgresql
 postgresql_container_env: ~
 postgresql_container_user: >-2
   {{ postgresql_user_id }}:{{ postgresql_user_group_id }}