Fix the setup for ControllerTest shared cluster

[Jackie-Jiang]

Currently the ControllerTest shared cluster setup mixes the single tenant and multi-tenant setup, which can cause unexpected behavior and is hard to debug

[codecov-commenter]

Codecov Report

Merging #9704 (11cdabc) into master (694999c) will increase coverage by 0.07%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #9704      +/-   ##
============================================
+ Coverage     69.91%   69.98%   +0.07%     
+ Complexity     5323     5322       -1     
============================================
  Files          1950     1950              
  Lines        104338   104338              
  Branches      15804    15804              
============================================
+ Hits          72946    73021      +75     
+ Misses        26270    26186      -84     
- Partials       5122     5131       +9     

Flag	Coverage Δ
integration1	25.41% <ø> (+<0.01%)	⬆️
integration2	24.62% <ø> (+0.02%)	⬆️
unittests1	67.42% <ø> (-0.01%)	⬇️
unittests2	15.71% <ø> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../helix/core/minion/MinionInstancesCleanupTask.java	77.27% <0.00%> (-4.55%)	⬇️
...ct/raw/RawIntSingleColumnDistinctOnlyExecutor.java	81.48% <0.00%> (-3.71%)	⬇️
...gregation/function/StUnionAggregationFunction.java	73.52% <0.00%> (-2.95%)	⬇️
...inot/core/operator/filter/FilterOperatorUtils.java	87.50% <0.00%> (-2.50%)	⬇️
...core/query/pruner/SelectionQuerySegmentPruner.java	85.88% <0.00%> (-2.36%)	⬇️
...e/pinot/controller/helix/SegmentStatusChecker.java	87.50% <0.00%> (-1.71%)	⬇️
...ery/optimizer/filter/MergeEqInFilterOptimizer.java	92.59% <0.00%> (-1.24%)	⬇️
...perator/filter/SortedIndexBasedFilterOperator.java	85.71% <0.00%> (-0.96%)	⬇️
...core/startree/operator/StarTreeFilterOperator.java	88.07% <0.00%> (-0.67%)	⬇️
...a/org/apache/pinot/core/common/DataBlockCache.java	88.81% <0.00%> (-0.63%)	⬇️
... and 22 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more