testifylint: enable and fix go-require rule

[mmorel-35]

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Enable and fixes go-require rule of testifylint linter.

Also update golangci-lint version

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Fixes #(issue)

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• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[mmorel-35]

/kind changelog-not-required

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 59.15%. Comparing base (0b74a73) to head (4880274).
Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8236   +/-   ##
=======================================
  Coverage   59.15%   59.15%           
=======================================
  Files         367      367           
  Lines       30777    30777           
=======================================
  Hits        18206    18206           
  Misses      11113    11113           
  Partials     1458     1458           

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[blackpiglet]

https://github.com/Antonboom/testifylint?tab=readme-ov-file#go-require

According to the document, it seems replacing the require with assert in the goroutine of test cases is not a good practice.