Release notes for 0.325.0

[hashhar]

```markdown
* <release note text>
  ([#NNN](https://github.com/trinodb/trino-python-client/issues/NNN))
```

[hashhar]

* Queries with parameters now uses `EXECUTE IMMEDIATE` instead of `PREPARE`,
  `EXECUTE` and `DEALLOCATE` if the server supports `EXECUTE IMMEDIATE`. If you
  want to revert to older mechanism set the kwarg `legacy_prepared_statements`
  to `True`.
  ([#375](https://github.com/trinodb/trino-python-client/issues/375))

#375

[hashhar]

* Update minimum required `requests` library version to `2.31.0`.
  ([#376](https://github.com/trinodb/trino-python-client/issues/376))

#376