Require setuptools for citations

[kratman]

Description

Require setuptools for the cite dependency set. This is the simplest fix that makes sure that the citations work.

Fixes #4432

Type of change

• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ pre-commit run (or $ nox -s pre-commit) (see CONTRIBUTING.md for how to set this up to run automatically when committing locally, in just two lines of code)
• All tests pass: $ python run-tests.py --all (or $ nox -s tests)
• The documentation builds: $ python run-tests.py --doctest (or $ nox -s doctests)

You can run integration tests, unit tests, and doctests together at once, using $ python run-tests.py --quick (or $ nox -s quick).

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.46%. Comparing base (b6fa67a) to head (17be7e8).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4478   +/-   ##
========================================
  Coverage    99.46%   99.46%           
========================================
  Files          293      293           
  Lines        22332    22332           
========================================
  Hits         22212    22212           
  Misses         120      120           

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[BradyPlanden]

Thanks @kratman - LGTM!