Upload perf benchmark to Rockset in batch of at most 5000 records (#107095)
TIL, uploading to Rockset has an upper limit of 5000 records per request. So uploading PT2 perf benchmark could fail if that limit was reached, for example https://github.com/pytorch/pytorch/actions/runs/5828810421/job/15849232756
```
HTTP response body: {"message":"The number of documents specified in this request exceeds the maximum allowed limit of 5,000 documents.","message_key":"RECEIVER_REQUEST_MAX_DOCUMENT_LIMIT","type":"INVALIDINPUT","line":null,"column":null,"trace_id":"73fc2eb5-cfd1-4baa-8141-47c7cde87812","error_id":null,"query_id":null,"internal_errors":null}
```
The fix is to upload the results in multiple smaller batches of at most 5000 records.
### Testing
5743 records from https://github.com/pytorch/pytorch/actions/runs/5828810421/job/15849232756 were written in 2 batches (5000 + 743)
```
python3 -m tools.stats.upload_dynamo_perf_stats --workflow-run-id 5821183777 --workflow-run-attempt 1 --repo pytorch/pytorch --head-branch gh/ezyang/2294/head
...
Writing 5000 documents to Rockset
Done!
Writing 743 documents to Rockset
Done!
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107095
Approved by: https://github.com/atalman, https://github.com/seemethere, https://github.com/ZainRizvi
