redis_om.model.model.QueryNotSupportedError: You tried to query by a field (coordinates) that isn't indexed.

A new error with Pydantic 2.12+ showed up in CI:

```
FAILED tests_sync/test_json_model.py::test_does_not_return_coordinates_if_outside_radius - redis_om.model.model.QueryNotSupportedError: You tried to query by a field (coordinates) that isn't indexed. 
```