Add test workflow with codecov as a test coverage

[MRmlik12]

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (dev@d5bbef5). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff          @@
##             dev      #3   +/-   ##
=====================================
  Coverage       ?   7.23%           
=====================================
  Files          ?      29           
  Lines          ?     525           
  Branches       ?       6           
=====================================
  Hits           ?      38           
  Misses         ?     487           
  Partials       ?       0           

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