fix(backup): corrige les droits dans le script de backup (#818)

infra/roles/prod/templates/backup

@@ -7,11 +7,14 @@ if [ "$(id -u)" != "{{camino_user_uid}}" ]; then
    echo "This script must be run as user 'camino'" 1>&2
    exit 1
 fi
-# backup
 
+
+# backup
+USER_GROUP_ID=$(getent group users | cut -d: -f3)
 docker exec camino_api_db /bin/bash -c 'rm -rf /dump/*'
 docker exec camino_api_db vacuumlo camino
 docker exec camino_api_db pg_dump --clean --if-exists --format=d --no-owner --no-privileges --dbname=camino -f /dump
+docker exec camino_api_db chown -R "{{camino_user_uid}}:${USER_GROUP_ID}" /dump
 
 # sauvegarde les fichiers
 rsync --delete -r /srv/www/camino/files/  /srv/backups/files