Data from the autojoind fleet is not being autoloaded

There is no new data in mlab-autojoin.autoload_v2_ndt.ndt7_union after 2025-09-02.

Test query:
```
SELECT server.site, MAX(date) AS newest
FROM `mlab-autojoin.autoload_v2_ndt.ndt7_union`
WHERE date > '2025-07-01'
GROUP BY site
ORDER BY newest
```