[INFRA] Add CodeQL CI

[eseiler]

No description provided.

[seqan-actions]

Documentation preview available at https://docs.seqan.de/preview/seqan/seqan3/3306

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.13%. Comparing base (a792447) to head (d99b1ae).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3306   +/-   ##
=======================================
  Coverage   98.13%   98.13%           
=======================================
  Files         271      271           
  Lines       11948    11948           
  Branches      104      104           
=======================================
  Hits        11725    11725           
  Misses        223      223           

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

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests