🚨 Fixed compiler warnings

[simon1hofmann]

Description

Fixed compiler warnings:
warning: declaration of 'x_offset' shadows a lambda capture [-Wshadow]
warning: declaration of 'y_offset' shadows a lambda capture [-Wshadow]
warning: conversion from ‘long unsigned int’ to ‘unsigned int:31’ may change value [-Wconversion]

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.22%. Comparing base (7696fa6) to head (3daf9d7).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #480      +/-   ##
==========================================
- Coverage   98.22%   98.22%   -0.01%     
==========================================
  Files         214      214              
  Lines       28957    28960       +3     
  Branches     1379     1379              
==========================================
+ Hits        28444    28446       +2     
- Misses        513      514       +1     

Files	Coverage Δ
...ithms/physical_design/post_layout_optimization.hpp	100.00% <ø> (ø)
...on/algorithms/physical_design/wiring_reduction.hpp	98.69% <100.00%> (+<0.01%)	⬆️

... and 3 files with indirect coverage changes

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