Use ubuntu-24.04 runners for CI and CD workflows

[MooVC]

Motivation

• Standardize the CI/CD runners to use ubuntu-24.04 instead of windows-latest to align builds with Linux-based runners and reduce dependency on Windows-specific images.

Description

• Replaced runs-on: windows-latest with runs-on: ubuntu-24.04 in .github/workflows/ci.yml and .github/workflows/cd.yml for the build and unlist jobs, with no other behavioral changes to steps or environment variables.

Testing

• No automated tests were executed as part of this change; the CI workflow continues to run dotnet build and dotnet test when triggered by repository events.

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Codex Task

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.85%. Comparing base (df605f8) to head (c2d8e88).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #140   +/-   ##
=======================================
  Coverage   96.85%   96.85%           
=======================================
  Files         132      132           
  Lines        2035     2035           
  Branches      192      192           
=======================================
  Hits         1971     1971           
  Misses         27       27           
  Partials       37       37           

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