Introduce SetLink on profiles

[dmathieu]

Description

This is part of #13106
It introduces a new SetLink method, which allows setting a sample's link based on a specific dictionary.

Related: #13197

[codecov]

Codecov Report

Attention: Patch coverage is 62.96296% with 10 lines in your changes missing coverage. Please review.

Project coverage is 91.50%. Comparing base (e7b140f) to head (36be095).

Files with missing lines	Patch %	Lines
pdata/pprofile/links.go	58.33%	7 Missing and 3 partials ⚠️

❌ Your patch check has failed because the patch coverage (62.96%) 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   #13223      +/-   ##
==========================================
- Coverage   91.54%   91.50%   -0.05%     
==========================================
  Files         522      524       +2     
  Lines       28955    28982      +27     
==========================================
+ Hits        26508    26520      +12     
- Misses       1931     1942      +11     
- Partials      516      520       +4     

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