Fix status return from compat checker

[mcvsubbu]

checkoutAndBuild.sh was returning a wrong status after failed builds.
Fixed it to return the right status.

Description

Upgrade Notes

Does this PR prevent a zero down-time upgrade? (Assume upgrade order: Controller, Broker, Server, Minion)

• Yes (Please label as backward-incompat, and complete the section below on Release Notes)

Does this PR fix a zero-downtime upgrade introduced earlier?

• Yes (Please label this as backward-incompat, and complete the section below on Release Notes)

Does this PR otherwise need attention when creating release notes? Things to consider:

• New configuration options
• Deprecation of configurations
• Signature changes to public methods/interfaces
• New plugins added or old plugins removed

• Yes (Please label this PR as release-notes and complete the section on Release Notes)

Release Notes

Documentation

[codecov-commenter]

Codecov Report

Merging #7279 (44e7e17) into master (6ef7f94) will increase coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #7279      +/-   ##
============================================
+ Coverage     68.95%   68.99%   +0.04%     
+ Complexity     3185     3183       -2     
============================================
  Files          1111     1111              
  Lines         52346    52346              
  Branches       7812     7812              
============================================
+ Hits          36097    36118      +21     
+ Misses        13672    13655      -17     
+ Partials       2577     2573       -4     

Flag	Coverage Δ
unittests1	68.99% <ø> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
.../startree/v2/builder/OffHeapSingleTreeBuilder.java	87.42% <0.00%> (-4.20%)	⬇️
...e/impl/forward/FixedByteMVMutableForwardIndex.java	90.90% <0.00%> (-3.04%)	⬇️
...e/pinot/segment/local/io/util/PinotDataBitSet.java	96.03% <0.00%> (-1.59%)	⬇️
...main/java/org/apache/pinot/spi/data/FieldSpec.java	80.85% <0.00%> (-0.54%)	⬇️
...cal/startree/v2/builder/BaseSingleTreeBuilder.java	89.23% <0.00%> (+0.89%)	⬆️
.../java/org/apache/pinot/spi/data/TimeFieldSpec.java	90.90% <0.00%> (+2.27%)	⬆️
...ot/segment/local/startree/OffHeapStarTreeNode.java	77.77% <0.00%> (+5.55%)	⬆️
...pache/pinot/core/util/SortedRangeIntersection.java	88.23% <0.00%> (+7.35%)	⬆️
...nt/local/startree/v2/store/StarTreeDataSource.java	53.33% <0.00%> (+13.33%)	⬆️
...core/startree/operator/StarTreeFilterOperator.java	83.68% <0.00%> (+15.60%)	⬆️

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