search for files, not dirs

podman/files/mysql-dump.sh.jinja

@@ -11,5 +11,5 @@ for db in ${databases[@]}; do
     fi
 done
 # Delete the files older than 3 days
-find $BACKUP_DIR/* -type d -name *-sql.gz -mtime +3 -exec rm {} \;
+find $BACKUP_DIR/* -type f -name *-sql.gz -mtime +3 -exec rm {} \;