Initial commit of Docker and mailcow updates

roles/docker_update/tasks/main.yaml

@@ -0,0 +1,9 @@
+---
+- name: Pull latest images and update Docker Compose stacks
+  become: true
+  community.docker.docker_compose_v2:
+    project_src: "{{ item }}"
+    state: present
+    pull: always
+  loop: "{{ docker_compose_dirs | default([]) }}"
+