chore(server): support setting /etc/hosts in container

roles/server/tasks/main.yml

@@ -118,6 +118,7 @@
     volumes: "{{ nextcloud_container_volumes }}"
     labels: "{{ nextcloud_container_labels }}"
     env: "{{ nextcloud_container_env }}"
+    etc_hosts: "{{ nextcloud_container_etc_hosts | default(omit, true) }}"
     networks: "{{ nextcloud_container_networks | default(omit, true) }}"
     purge_networks: "{{ nextcloud_container_purge_other_networks }}"
     restart_policy: "{{ nextcloud_container_restart_policy }}"