Fix compilation in Darwin + updated linter + linter complaints fixed

[mariomac]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 7 lines in your changes missing coverage. Please review.

Project coverage is 66.98%. Comparing base (6e7397a) to head (6f31c65).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/export/otel/metrics_internal.go	0.00%	6 Missing ⚠️
pkg/internal/ebpf/common/http2grpc_transform.go	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1743      +/-   ##
==========================================
+ Coverage   65.84%   66.98%   +1.13%     
==========================================
  Files         214      214              
  Lines       22225    22225              
==========================================
+ Hits        14634    14887     +253     
+ Misses       6855     6602     -253     
  Partials      736      736              

Flag	Coverage Δ
integration-test	54.13% <50.00%> (ø)
k8s-integration-test	53.88% <42.85%> (-0.03%)	⬇️
oats-test	34.86% <7.14%> (?)
unittests	43.88% <7.14%> (+<0.01%)	⬆️

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