🚨 clang-tidy warnings

[simon1hofmann]

Description

Applied clang-tidy suggestions`.

Checklist:

• The pull request only contains commits that are related to it.
• I have added appropriate tests and documentation.
• I have added a changelog entry.
• I have created/adjusted the Python bindings for any new or updated functionality.
• I have made sure that all CI jobs on GitHub pass.
• The pull request introduces no new warnings and follows the project's style guidelines.

[marcelwa]

Many thanks! 🙏

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.15%. Comparing base (64fb20b) to head (6b907ed).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #507   +/-   ##
=======================================
  Coverage   98.14%   98.15%           
=======================================
  Files         224      224           
  Lines       31130    31128    -2     
  Branches     1560     1561    +1     
=======================================
- Hits        30554    30553    -1     
+ Misses        576      575    -1     

Files	Coverage Δ
...s/physical_design/graph_oriented_layout_design.hpp	100.00% <100.00%> (ø)
.../fiction/algorithms/physical_design/orthogonal.hpp	96.36% <ø> (ø)
...s/physical_design/graph_oriented_layout_design.cpp	100.00% <ø> (ø)

... and 4 files with indirect coverage changes

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[github-actions]

clang-tidy made some suggestions

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"