[chore] Bytes based batching for profiles

[iblancasa]

Description

This PR implements serialized bytes based batching for metrics.

Link to tracking issue

#3262

Continuation of #12299 made by @sfc-gh-sili.

Related PRs:

• Bytes based batching for metrics #12550
• Bytes based batching for traces #12519

[codecov]

Codecov Report

Attention: Patch coverage is 79.54545% with 27 lines in your changes missing coverage. Please review.

Project coverage is 91.38%. Comparing base (7d854d5) to head (4e3c2ad).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...er/exporterhelper/internal/sizer/profiles_sizer.go	0.00%	14 Missing ⚠️
...r/exporterhelper/xexporterhelper/profiles_batch.go	92.85%	6 Missing and 1 partial ⚠️
pdata/pprofile/pb.go	40.00%	6 Missing ⚠️

❌ Your patch status has failed because the patch coverage (79.54%) is below the target coverage (95.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12564      +/-   ##
==========================================
- Coverage   91.46%   91.38%   -0.08%     
==========================================
  Files         483      484       +1     
  Lines       26624    26695      +71     
==========================================
+ Hits        24351    24396      +45     
- Misses       1791     1817      +26     
  Partials      482      482              

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[iblancasa]

@dmitryax @bogdandrutu

[iblancasa]

Fixed conflicts. Can you review? @dmitryax @bogdandrutu

[dmitryax]

I believe this actually needs the changelog item now given that we enabled the bytes batching already

[iblancasa]

I believe this actually needs the changelog item now given that we enabled the bytes batching already

Added. I think we are ready to go.