pytest: *FAILED* in `test_networkevents`

### How to replicate

On macOS M5 Tahoe 26.4, run `uv run pytest -vvvv tests/test_connection.py::test_networkevents`.
The test fail with:
```
FAILED tests/test_connection.py::test_networkevents - AssertionError: Regex pattern did not match.
Expected regex: 'Connection establishment: Connection refused.'
Actual message: "RPC call failed: method: connect, payload: {'id': '033845802d25b4e074ccfd7cd8b339a41dc75bf9978a034800444b51d42b07799a', 'host': 'localhost', 'port': 1}, error: {'code': 401, 'message': 'All addresses failed: 127.0.0.1:1: Connection establishment: Bad file descriptor. '}"
```

The test pass on Linux.