Maintenance update (formatting, automated build, publications, and OpenMDAO updates)

[eytanadler]

Purpose

This PR addresses four maintenance tasks:

• Updates the code formatting for black version 23
• Changes the GitHub Actions build to test two versions of the dependencies, the oldest supported versions of all packages and the latest versions. It also tests them regularly, even if no PRs are made, to ensure that dependency version updates don't break OpenConcept.
• Updates the publications with recent ones and edits the OpenAeroStruct integration citation to be the newly-published journal paper.
• Makes changes to tests to accommodate newer OpenMDAO versions (gets rid of any cases where the top level model is not a group and catches different error thrown by newer OM versions in one test)

Type of change

What types of change is it?
Select the appropriate type(s) that describe this PR

• Maintenance (GitHub Actions)
• Code style update (formatting, renaming)
• Documentation update

Testing

Explain the steps needed to test the new code to verify that it does indeed address the issue and produce the expected behavior.

Checklist

Put an x in the boxes that apply.

• I have run unit and regression tests which pass locally with my changes
• I have added new tests that prove my fix is effective or that my feature works
• I have added necessary documentation

[codecov]

Codecov Report

Merging #45 (7c20b65) into main (ae1d52e) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #45      +/-   ##
==========================================
- Coverage   80.28%   80.25%   -0.04%     
==========================================
  Files          84       84              
  Lines        8974     8974              
==========================================
- Hits         7205     7202       -3     
- Misses       1769     1772       +3     

Impacted Files	Coverage Δ
examples/minimal_integrator.py	60.41% <0.00%> (-2.09%)	⬇️
examples/minimal.py	72.85% <0.00%> (-1.43%)	⬇️
examples/TBM850.py	70.24% <0.00%> (-0.83%)	⬇️
mission/phases.py	99.53% <0.00%> (ø)
mission/mission_groups.py	97.51% <0.00%> (ø)
utilities/visualization.py	7.57% <0.00%> (ø)
utilities/math/integrals.py	91.02% <0.00%> (ø)
utilities/math/derivatives.py	95.06% <0.00%> (ø)
atmospherics/atmospherics_data.py	100.00% <0.00%> (ø)
aerodynamics/openaerostruct/drag_polar.py	92.45% <0.00%> (ø)
... and 1 more

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[bernardopacini]

Looks good to me! Just out of curiosity, is there a specific motivation for the time / dates of the scheduled runs or are those random?

[awccopp]

Lgtm

[bernardopacini]

Looks good! Should we be concerned about the hanging Mac tests?