get to fail

.github/workflows/sync-wiki.yaml

@@ -53,5 +53,7 @@ jobs:
         if [ -n "$RUSEFI_FTP_SERVER" ]; then
           echo "Uploading Wiki"
           ncftpput -R -z -m -V -u "$RUSEFI_DOXYGEN_FTP_USER" -p "$RUSEFI_DOXYGEN_FTP_PASS" "$RUSEFI_FTP_SERVER" / wiki
+        else
+          echo "Secret not set"
+          exit 1
         fi
-        [ $? -eq 0 ] || { echo "upload FAILED"; exit 1; }