fix: Pydantic warning

[thorbjoernl]

Change Summary

Fixes the underlying pydantic issue. Unsilences the related deprecation warning.

Related issue number

closes #1564

Checklist

• Start with a draft-PR
• The PR title is a good summary of the changes
• PR is set to AeroTools and a tentative milestone
• Documentation reflects the changes where applicable
• Tests for the changes exist where applicable
• Tests pass locally
• Tests pass on CI
• At least 1 reviewer is selected
• Make PR ready to review

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.24%. Comparing base (6e3fe5a) to head (7b0c130).
Report is 6 commits behind head on main-dev.

Additional details and impacted files

@@            Coverage Diff            @@
##           main-dev    #1573   +/-   ##
=========================================
  Coverage     77.24%   77.24%           
=========================================
  Files           145      145           
  Lines         21280    21280           
=========================================
  Hits          16437    16437           
  Misses         4843     4843           

Flag	Coverage Δ
unittests	77.24% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.