feat: Unit testing for package `upgrade`

[juanjjaramillo]

Description

Unit testing for Go package upgrade

Type of change

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

Checklist:

• [ ] Documentation has been updated
• [x] This change requires changes in testing:
  • [x] unit tests
  • [ ] E2E tests

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 49.19%. Comparing base (6117899) to head (ba7077e).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #36 +/- ## ========================================== + Coverage 47.37% 49.19% +1.81% ========================================== Files 12 13 +1 Lines 876 927 +51 ========================================== + Hits 415 456 +41 - Misses 406 412 +6 - Partials 55 59 +4 ```

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