Improving logging of Jupyter task to capture cell output

[kvnkho]

Summary

This is a response to #4265, which was raised on Slack. The user wanted to capture Jupyter notebook cell outputs in the Prefect logs.

Changes

There are two things needed to get this to work. One is to pass the log_output bool into papermill's execute_notebook function. By default this is False. It needs to be True. For consistency with the previous implementation, I kept the default asFalse, though I feel there might be benefits in making it True.

The second thing is to get the papermill logger and change the level to INFO or DEBUG. By default, it is at WARN so it does not log cell outputs. I think we should not do this change on the task side. Instead, Prefect users should use the (extra loggers)[https://docs.prefect.io/core/concepts/logging.html#extra-loggers] part of the TOML config and add the papermill logger.

There is an added test to see if the papermill logs are being captured. There are some edits to the .ipynb to see more output from the papermill logs.

Checklist

This PR:

• adds new tests (if appropriate)
• adds a change file in the changes/ directory (if appropriate)
• updates docstrings for any new functions or function arguments, including docs/outline.toml for API reference docs (if appropriate)

[marvin-robot]

Here I am, brain the size of a planet and they ask me to welcome you to Prefect.

So, welcome to the community @kvnkho! 🎉 🎉

[cicdw]

LGTM and congrats on your first PR!