Fix ingestion throttling error

We have an issue with a client that wants to ingests Bitwarden logs, however since a few months now, we are unable to ingest the logs because at every iteration of the input script, we get the error below :

```
2025-12-12 07:56:09,535 log_level=ERROR pid=1878971 tid=MainThread file=bitwarden_event_logs.py:main:62 | 429 Client Error: Unknown Error for url: https://vault.bitwarden.eu/api/public/events?start=2025-11-25+08%3A42%3A33.256538%2B00%3A00&end=2025-11-26+07%3A35%3A56.132339%2B00%3A00&continuationToken=
```

I saw that we have a limitation of 400 API calls during one minute and after that we get this error.
A solution would be to use the values inside the header values (x-rate-limit-remaining, x-rate-limit-reset) and optimize the way the api calls are made when lots of data need to be retrieved.