ci: add Codecov

[dbudziwojskiNR]

Description

Type of change

• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] New feature / enhancement (non-breaking change which adds functionality)
• [ ] Security fix
• [ ] Bug fix (non-breaking change which fixes an issue)

Checklist:

• [x] Add changelog entry following the contributing guide
• [ ] Documentation has been updated
• [ ] This change requires changes in testing:
  • [ ] unit tests
  • [ ] E2E tests

[codecov[bot]]

Welcome to Codecov :tada:

Once merged to your default branch, Codecov will compare your coverage reports and display the results in this comment.

Thanks for integrating Codecov - We've got you covered :open_umbrella: