`run-bmi-server` stays quiet

When attempting to start the BMI server from the terminal, the model code seems to run (pywflow's Julia import does occur), but then it stays quiet & does not report the port number. Terminating the process returns nothing (no errors).

Steps to reproduce (in an empty python environment):
```
pip install wheel
pip install grpcio-reflection==1.48.2
pip install https://github.com/eWaterCycle/grpc4bmi/archive/refs/heads/0.2.x.zip
pip install https://github.com/eWaterCycle/pywflow/archive/refs/heads/main.zip

run-bmi-server --name pywflow.wflow.WflowBMI
```

Setup:
WSL2, Ubuntu 20.04
Python 3.8.10