feat(executor): handle processors only once

[AndreyMarkinPPC]

• move dataset creation into preprocessor of bq_executor

[codecov-commenter]

Codecov Report

❌ Patch coverage is 80.95238% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.73%. Comparing base (5ebb9d2) to head (b0b47d3).
⚠️ Report is 229 commits behind head on main.

Files with missing lines	Patch %	Lines
libs/executors/garf/executors/executor.py	76.92%	3 Missing ⚠️
libs/executors/garf/executors/bq_executor.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #423      +/-   ##
==========================================
+ Coverage   88.23%   90.73%   +2.50%     
==========================================
  Files          61       82      +21     
  Lines        2600     4209    +1609     
==========================================
+ Hits         2294     3819    +1525     
- Misses        306      390      +84     

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