Fix CodeQL Reporting

[PSchmiedmayer]

Fix CodeQL Reporting

⚙️ Release Notes

• Fix CodeQL Reporting
• Fix Link Checking & Improve the README formatting.
• Addresses open issues with GitHub Hosted Runners, manually switching to a previous Xcode version.

📝 Code of Conduct & Contributing Guidelines

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• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.73%. Comparing base (630c1b7) to head (ea617e9).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #96   +/-   ##
=======================================
  Coverage   86.73%   86.73%           
=======================================
  Files          21       21           
  Lines         693      693           
=======================================
  Hits          601      601           
  Misses         92       92           

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