feat: Unit testing for package `instrumentation`

[juanjjaramillo]

Description

Unit testing for Go package instrumentation

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 60.75%. Comparing base (73c1d41) to head (df1b1b9).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #31 +/- ## =========================================== + Coverage 47.39% 60.75% +13.35% =========================================== Files 4 7 +3 Lines 192 586 +394 =========================================== + Hits 91 356 +265 - Misses 89 187 +98 - Partials 12 43 +31 ```

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