cicd: enable test coverage

[titusjaka]

related to: #4

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 57.50%. Comparing base (e0307d5) to head (308f792).
Report is 15 commits behind head on main.

❗ Current head 308f792 differs from pull request most recent head 5eb4816. Consider uploading reports for the commit 5eb4816 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
- Coverage   58.60%   57.50%   -1.11%     
==========================================
  Files          22       23       +1     
  Lines         947      960      +13     
==========================================
- Hits          555      552       -3     
- Misses        384      399      +15     
- Partials        8        9       +1     

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