Don't provision occ script on every machine

It only makes sense on 1

ansible/roles/pve_docker/files/nextcloud/occ

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -e
+
+exec docker-compose -f /opt/nextcloud/docker-compose.yml exec -u abc nextcloud php /config/www/nextcloud/occ "$@"

ansible/roles/pve_docker/tasks/nextcloud.yml

@@ -28,6 +28,14 @@
   register: config_file
   become: true
 
+- name: Install occ script
+  template:
+    src: files/nextcloud/occ
+    dest: /opt/nextcloud/occ
+    mode: "0755"
+    owner: "{{ docker_user.name }}"
+  become: true
+
 - name: restart nextcloud
   shell:
     chdir: /opt/nextcloud