Respect TypedDict.__required_keys__

[a-gardner1]

What does this PR do?

Resolves #596.

Note that this cannot be addressed in Python 3.8 or below (see the linked context in the issue).

Before submitting

• Did you read the contributing guideline?
• Did you update the documentation? (readme and public docstrings)
• Did you write unit tests such that there is 100% coverage on related code? (required for bug fixes and new features)
• Did you verify that new and existing tests pass locally?
• Did you make sure that all changes preserve backward compatibility?
• Did you update the CHANGELOG? (not for typos, docs, test updates, or minor internal changes/refactors)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2160982) to head (7f0c0f3).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #597   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           22        22           
  Lines         6488      6492    +4     
=========================================
+ Hits          6488      6492    +4     

Flag	Coverage Δ
py3.10	85.76% <80.00%> (-0.03%)	⬇️
py3.10_all	98.79% <80.00%> (-0.05%)	⬇️
py3.10_pydantic1	49.15% <0.00%> (-0.04%)	⬇️
py3.10_pydantic2	48.93% <0.00%> (-0.04%)	⬇️
py3.10_types	98.81% <80.00%> (-0.05%)	⬇️
py3.11	85.95% <80.00%> (-0.03%)	⬇️
py3.11_all	98.75% <80.00%> (-0.05%)	⬇️
py3.11_types	98.76% <80.00%> (-0.05%)	⬇️
py3.12	86.09% <80.00%> (-0.04%)	⬇️
py3.12_all	98.75% <80.00%> (-0.05%)	⬇️
py3.12_types	98.76% <80.00%> (-0.05%)	⬇️
py3.8	86.38% <40.00%> (-0.04%)	⬇️
py3.8_all	99.42% <40.00%> (-0.05%)	⬇️
py3.8_types	99.46% <40.00%> (-0.05%)	⬇️
py3.9	86.31% <80.00%> (-0.03%)	⬇️
py3.9_all	99.38% <80.00%> (-0.05%)	⬇️
py3.9_types	99.39% <80.00%> (-0.05%)	⬇️

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[mauvilsa]

Thanks for the fix!

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud