feat(executors): add support for alias in custom report fetcher

[AndreyMarkinPPC]

If one module contains multiple implementation of ApiReportFetcher differentiate them by alias property

[codecov-commenter]

Codecov Report

❌ Patch coverage is 60.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.90%. Comparing base (5ebb9d2) to head (c757fea).
⚠️ Report is 81 commits behind head on main.

Files with missing lines	Patch %	Lines
libs/executors/garf/executors/fetchers.py	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #262      +/-   ##
==========================================
+ Coverage   88.23%   88.90%   +0.67%     
==========================================
  Files          61       73      +12     
  Lines        2600     3254     +654     
==========================================
+ Hits         2294     2893     +599     
- Misses        306      361      +55     

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