Run golang-ci lint for all the modules

[lucacome]

Proposed changes

Problem: golangci-lint is not running for the tests module so we currently have a few errors.

Solution: run golangci-lint for the tests module and fix the errors

Closes #2077

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

If this PR introduces a change that affects users and needs to be mentioned in the release notes,
please add a brief note that summarizes the change.

NONE

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.61%. Comparing base (fc2ed96) to head (66fad76).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2081   +/-   ##
=======================================
  Coverage   87.61%   87.61%           
=======================================
  Files          96       96           
  Lines        6694     6694           
  Branches       50       50           
=======================================
  Hits         5865     5865           
  Misses        773      773           
  Partials       56       56           

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