Close grpc connection after query in ClusterTest

[shounakmk219]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.29%. Comparing base (59551e4) to head (41cac79).
Report is 1935 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #15394      +/-   ##
============================================
+ Coverage     61.75%   63.29%   +1.54%     
- Complexity      207     1375    +1168     
============================================
  Files          2436     2812     +376     
  Lines        133233   158967   +25734     
  Branches      20636    24351    +3715     
============================================
+ Hits          82274   100621   +18347     
- Misses        44911    50749    +5838     
- Partials       6048     7597    +1549     

Flag	Coverage Δ
custom-integration1	100.00% <ø> (+99.99%)	⬆️
integration	100.00% <ø> (+99.99%)	⬆️
integration1	100.00% <ø> (+99.99%)	⬆️
integration2	0.00% <ø> (ø)
java-11	63.20% <ø> (+1.49%)	⬆️
java-21	63.25% <ø> (+1.62%)	⬆️
skip-bytebuffers-false	63.28% <ø> (+1.54%)	⬆️
skip-bytebuffers-true	63.17% <ø> (+35.44%)	⬆️
temurin	63.29% <ø> (+1.54%)	⬆️
unittests	63.29% <ø> (+1.54%)	⬆️
unittests1	56.25% <ø> (+9.36%)	⬆️
unittests2	33.90% <ø> (+6.17%)	⬆️

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