Qiskit Functions: decide if we want to test any of the notebooks

[Eric-Arellano]

We skip all of the notebooks by setting notebooks_exclude in notebook-testing.toml. Should we test any of these?

Update: sync with David, Iskander, and Sanket about what they think is reasonable. We should also consider #1173 or adding Pylint.

[frankharkins]

Discussed in meeting: We could try a static analysis tool like pylint to detect things like undefined variables and typos in module names. Related to #1806.