Do not add leaf stage time into broker time

[Jackie-Jiang]

Fix the bug where we add the leaf stage execution time into the query time.
Query time should be the wall clock time captured on the broker side

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.15%. Comparing base (59551e4) to head (a1eb50e).
Report is 438 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #13136      +/-   ##
============================================
+ Coverage     61.75%   62.15%   +0.40%     
+ Complexity      207      198       -9     
============================================
  Files          2436     2515      +79     
  Lines        133233   137859    +4626     
  Branches      20636    21335     +699     
============================================
+ Hits          82274    85692    +3418     
- Misses        44911    45789     +878     
- Partials       6048     6378     +330     

Flag	Coverage Δ
custom-integration1	<0.01% <0.00%> (-0.01%)	⬇️
integration	<0.01% <0.00%> (-0.01%)	⬇️
integration1	<0.01% <0.00%> (-0.01%)	⬇️
integration2	0.00% <0.00%> (ø)
java-11	62.10% <100.00%> (+0.39%)	⬆️
java-21	62.04% <100.00%> (+0.41%)	⬆️
skip-bytebuffers-false	62.14% <100.00%> (+0.39%)	⬆️
skip-bytebuffers-true	62.00% <100.00%> (+34.27%)	⬆️
temurin	62.15% <100.00%> (+0.40%)	⬆️
unittests	62.15% <100.00%> (+0.40%)	⬆️
unittests1	46.76% <100.00%> (-0.13%)	⬇️
unittests2	27.76% <0.00%> (+0.03%)	⬆️

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