reproducible debian live: use scp -p (again) when syncing results

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

bin/reproducible_debian_live_sync_result.sh

@@ -26,7 +26,7 @@ rsync_remote_results() {
     echo "$(date -u) - Starting to sync $description to '$filename'."
     # Copy the new results from the build node to the web server node
     cd "$BASE"/"$PROJECT"
-    scp -o Batchmode=yes "$NODE":"$origfile" "$filename.tmp"
+    scp -p -o Batchmode=yes "$NODE":"$origfile" "$filename.tmp"
     chmod 755 "$filename.tmp"
     mv "$filename.tmp" "$filename"
     echo "$(date -u) - enjoy ${REPRODUCIBLE_URL}/${PROJECT}/${filename}"