Flaky test: tests/sentry/services/eventstore/test_models.py::EventTest::test_snuba_data

Failing test: `tests/sentry/services/eventstore/test_models.py::EventTest::test_snuba_data`
Sentry sha: d9ad7639e47f7492cc115bef2a69b9f344529f4f
Run: https://github.com/getsentry/sentry/actions/runs/22300140608

```
tests/sentry/services/eventstore/test_models.py:254: in test_snuba_data
assert event_from_nodestore.timestamp == event_from_snuba.timestamp
E AssertionError: assert '2026-02-23T09:31:35+00:00' == '2026-02-23T0....913000+00:00'
E 
E - 2026-02-23T09:31:35.913000+00:00
E ? -------
E + 2026-02-23T09:31:35+00:00
```

Start with tests/sentry/services/eventstore/test_models.py::EventTest::test_snuba_data and reproduce the failure using the linked GitHub Actions run as context. Inspect the assertion at line 254 and the differing nodestore and Snuba timestamps. Done means the test passes reliably while retaining the intended timestamp comparison.

Written by the indexing model from the issue text.