Fix flaky OfflineClusterIntegrationTest on server response size tests

[Jackie-Jiang]

The flakiness comes from the assert statement which can fail when table config change is not picked up by TableCache yet

[codecov-commenter]

Codecov Report

Merging #11926 (b60db41) into master (8d49b11) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master   #11926      +/-   ##
============================================
- Coverage     61.40%   61.40%   -0.01%     
- Complexity     1145     1147       +2     
============================================
  Files          2378     2378              
  Lines        128851   128851              
  Branches      19926    19926              
============================================
- Hits          79127    79126       -1     
+ Misses        44002    43996       -6     
- Partials       5722     5729       +7     

Flag	Coverage Δ
custom-integration1	<0.01% <ø> (ø)
integration	<0.01% <ø> (ø)
integration1	<0.01% <ø> (ø)
integration2	0.00% <ø> (ø)
java-11	61.39% <ø> (+26.65%)	⬆️
java-21	34.64% <ø> (-26.66%)	⬇️
skip-bytebuffers-false	61.40% <ø> (+0.01%)	⬆️
skip-bytebuffers-true	?
temurin	61.40% <ø> (-0.01%)	⬇️
unittests	61.40% <ø> (-0.01%)	⬇️
unittests1	46.62% <ø> (+<0.01%)	⬆️
unittests2	27.63% <ø> (-0.01%)	⬇️

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see 13 files with indirect coverage changes

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