drone: Try privileged step instead trusted repo.

.drone.yml

@@ -25,6 +25,7 @@ steps:
       - for G in dir.*; do
       - if [ ! "$G" -ef "$DIR" ]; then rm -rf "$G"; fi
       - done
+    privileged: true
     volumes:
       - name: hosting
         path: /var/amber-lang.net