Disabling the normalizer breaks unknown metrics

Original slack thread: https://app.slack.com/client/T08PSQ7BQ/C01LSCJBXDZ?cdn_fallback=1

The error is 
```
The start time must be before the end time (2025-05-15T13:12:36.047-07:00) for the non-gauge metric 'prometheus.googleapis.com/worker_pool_usage_50_percentile/unknown:counter'.
```