Missing pip install open-telemetry step in python tutorial - Add user authentication

**Tutorial**: https://learn.microsoft.com/en-us/graph/tutorials/python?tabs=aad&tutorial-step=3

When running, last command, there is an error message explaining that open-telemetry is not installed. 

To solve this problem, add the following pip installs: 
```
pip install opentelemetry-api
pip install opentelemetry-sdk
```

I suggest adding that somewhere in the documentation. 