Provide more detailed/consolidated exceptions

[xiangfu0]

1. Fixed the missing root cause in BlockExchange
2. Make broker side error response more explicit

After:

[codecov-commenter]

Codecov Report

Merging #11363 (7810f37) into master (4c307e1) will decrease coverage by 47.28%.
Report is 1 commits behind head on master.
The diff coverage is 16.00%.

@@              Coverage Diff              @@
##             master   #11363       +/-   ##
=============================================
- Coverage     61.52%   14.24%   -47.28%     
+ Complexity     6514      494     -6020     
=============================================
  Files          2233     2234        +1     
  Lines        120083   120106       +23     
  Branches      18223    18228        +5     
=============================================
- Hits          73880    17114    -56766     
- Misses        40801   101578    +60777     
+ Partials       5402     1414     -3988     

Flag	Coverage Δ
integration1	0.00% <0.00%> (ø)
integration2	0.00% <0.00%> (ø)
java-11	14.24% <16.00%> (-47.24%)	⬇️
java-17	14.23% <16.00%> (-47.13%)	⬇️
java-20	14.24% <16.00%> (-47.14%)	⬇️
temurin	14.24% <16.00%> (-47.28%)	⬇️
unittests1	?
unittests2	14.63% <16.66%> (-0.01%)	⬇️

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

Files Changed	Coverage Δ
.../org/apache/pinot/common/utils/ExceptionUtils.java	0.00% <0.00%> (ø)
...a/org/apache/pinot/query/catalog/PinotCatalog.java	0.00% <0.00%> (-47.37%)	⬇️
...query/runtime/operator/exchange/BlockExchange.java	0.00% <0.00%> (ø)
...requesthandler/MultiStageBrokerRequestHandler.java	27.27% <100.00%> (+1.11%)	⬆️

... and 1394 files with indirect coverage changes

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