Resolve "build: update Borg Ansible role to v0.9.3"

Closes #68 (closed)

roles/ynh_backup/defaults/main.yml

@@ -26,7 +26,7 @@ ynh_backup:
 ynh_borg_backup_scheduled:            False
 m3nu_ansible_role_borgbackup_version: "v0.9.3"
 borg_source_directories:
-  -                                   "/home/yunohost.backup"
+  - "/home/yunohost.backup"
 borg_repository:                      "/data/backup/borg_repository"
 borg_init_command:                    "borgmatic init -c /etc/borgmatic/{{ borgmatic_config_name }} -e repokey --syslog-verbosity 1"
 borg_archive_name_format:             "'{hostname}-yunohost-live-data-{now:%Y-%m-%d-%H%M%S}'"