Ruff TODO fixes

[oliverfunk]

Linked Issues

Closes #3483

Description

Interface Changes

Checklist

I confirm that I have completed the following checks:

• [ ] Tests run locally and pass pytest tests --reactor
• [ ] Code quality checks run locally and pass pre-commit run --from-ref develop --to-ref HEAD
• [ ] Documentation built locally and checked sphinx-build -W documentation/source documentation/build

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 76.40%. Comparing base (aeb6b4a) to head (a7477af). Report is 11 commits behind head on develop.

Files with missing lines	Patch %	Lines
bluemira/equilibria/equilibrium.py	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #3529 +/- ## =========================================== + Coverage 76.38% 76.40% +0.02% =========================================== Files 230 230 Lines 26640 26636 -4 =========================================== + Hits 20349 20352 +3 + Misses 6291 6284 -7 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
13 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