[executors] fix: avoid dataset conflicts in bq_executor

[AndreyMarkinPPC]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.25%. Comparing base (5ebb9d2) to head (ea9f5fc).
⚠️ Report is 35 commits behind head on main.

Files with missing lines	Patch %	Lines
libs/executors/garf_executors/bq_executor.py	25.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #221      +/-   ##
==========================================
+ Coverage   88.23%   89.25%   +1.02%     
==========================================
  Files          61       67       +6     
  Lines        2600     2932     +332     
==========================================
+ Hits         2294     2617     +323     
- Misses        306      315       +9     

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