Add a random offset to the sleep value

config/root/etc/s6-overlay/s6-rc.d/tubesync-fs-worker/run

@@ -2,4 +2,5 @@
 
 exec nice -n "${TUBESYNC_NICE:-1}" s6-setuidgid app \
     /usr/bin/python3 /app/manage.py process_tasks \
-    --queue filesystem --duration 43200 --sleep 20
+    --queue filesystem --duration 43200 \
+    --sleep "20.${RANDOM}"