Added options to customize batch request size

[alex268]

No description provided.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 87.50000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.78%. Comparing base (76c4a96) to head (6f21e45).

Files with missing lines	Patch %	Lines
.../tech/ydb/spark/connector/write/YdbDataWriter.java	87.50%	0 Missing and 1 partial ⚠️
...ch/ydb/spark/connector/write/YdbWriterFactory.java	80.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main      #32      +/-   ##
============================================
+ Coverage     51.55%   51.78%   +0.23%     
- Complexity      394      395       +1     
============================================
  Files            30       30              
  Lines          2062     2070       +8     
  Branches        389      390       +1     
============================================
+ Hits           1063     1072       +9     
  Misses          834      834              
+ Partials        165      164       -1     

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