[chore]: enable error-nil and nil-compare rules from testifylint

[mmorel-35]

Description

Testifylint is a linter that provides best practices with the use of testify.

This PR enables error-nil and nil-compare rules from testifylint

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.23%. Comparing base (65bebec) to head (2eeac37).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #11120   +/-   ##
=======================================
  Coverage   92.23%   92.23%           
=======================================
  Files         414      414           
  Lines       19810    19810           
=======================================
  Hits        18271    18271           
  Misses       1167     1167           
  Partials      372      372           

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