Fix support for skipping Go tracers

[grcevski]

During some refactoring for multi-process support we had broken the debug option BEYLA_SKIP_GO_SPECIFIC_TRACERS, which can come in handy when debugging issues with Go instrumentation. For example, we may fail to parse something or work with older Go version that is unsupported.

This fixes the support for the option and adds an integration test so we don't accidentally break it again.

[codecov-commenter]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (e2c0c51) 78.26% compared to head (1c21a19) 65.89%.
Report is 1 commits behind head on main.

Files	Patch %	Lines
pkg/internal/discover/attacher.go	40.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #451       +/-   ##
===========================================
- Coverage   78.26%   65.89%   -12.38%     
===========================================
  Files          61       58        -3     
  Lines        5028     4937       -91     
===========================================
- Hits         3935     3253      -682     
- Misses        882     1418      +536     
- Partials      211      266       +55     

Flag	Coverage Δ
integration-test	65.89% <40.00%> (+0.14%)	⬆️
unittests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[mariomac]

Hmmm strange. I thought that skipping go specific tracers in the previous pipeline stage (typer) would be enough.

Thanks for finding the issue and fixing it!

[mariomac]

I'd also backport the issue to release-1.0.

[grcevski]

I'd also backport the issue to release-1.0.

Sounds good!