Set Nextcloud php upload limit to 2GB

roles/nextcloud/templates/docker-stack.yml.j2

@@ -41,6 +41,7 @@ services:
       - POSTGRES_DB={{ nextcloud_db_username }}
       - POSTGRES_USER={{ nextcloud_db_username }}
       - POSTGRES_PASSWORD={{ nextcloud_db_password }}
+      - PHP_UPLOAD_LIMIT=2048M
 {% if nextcloud_trusted_domains is not undefined and not none %}   
       - NEXTCLOUD_TRUSTED_DOMAINS={{ nextcloud_trusted_domains }}
 {% endif %}