Update CI infrastructure for Jupyter notebooks to dispatches-nbcheck 0.2.x

[lbianchi-lbl]

Addresses issue: #181

Summary/Motivation:

• The nbcheck plugin for testing Jupyter notebooks has been updated to 0.2.x with a streamlined structure and new features
• This PR updates the relevant GHA workflows so that the newest tagged version of nbcheck is used
• Originally these changes were made as part of #186, but since #178 has been resolved by #179, #184 (and therefore #186) are no longer needed

Changes proposed in this PR:

• Add nbcheck to dev requirements
• Update notebooks-checks.yml GHA workflow file to use features from nbcheck 0.2.x
• Update default flags in pytest.ini

Legal Acknowledgement

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2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (3cad6e1) 93.74% compared to head (1b353f7) 93.74%.

Additional details and impacted files

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[lbianchi-lbl]

For some reason (possibly a GHA service degradation?), the jobs are showing up as still pending even though they have completed:

The only failure is the expected RE DoubleLoopOptimization.ipynb Cell 10 timeout, which should be addressed by #181 (and possibly setting a slightly larger value in the GHA workflow). Therefore, I'll go ahead and merge this in so that these changes can be incorporated into #181.