Update golangci-lint to v2.8.0 and fix linting issues

[aalexand]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.35%. Comparing base (71be6bf) to head (f0a54c0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #986   +/-   ##
=======================================
  Coverage   67.34%   67.35%           
=======================================
  Files          44       44           
  Lines        7791     7792    +1     
=======================================
+ Hits         5247     5248    +1     
  Misses       2112     2112           
  Partials      432      432           

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