[Backport 2.x] [Spotless] Applying Google Code Format for core/src/main files #2 #1931

[MitchellGale]

Description

This PR applies Spotless on Java code for:
core/src/main/java/org/opensearch/sql/exception
core/src/main/java/org/opensearch/sql/executor
core/src/main/java/org/opensearch/sql/expression
core/src/main/java/org/opensearch/sql/monitor

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Merging #1993 (9a93473) into 2.x (3f7db81) will increase coverage by 0.08%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                2.x    #1993      +/-   ##
============================================
+ Coverage     97.42%   97.50%   +0.08%     
- Complexity     4646     4657      +11     
============================================
  Files           408      408              
  Lines         11525    11925     +400     
  Branches        835      831       -4     
============================================
+ Hits          11228    11628     +400     
  Misses          290      290              
  Partials          7        7              

Flag	Coverage Δ
sql-engine	97.50% <100.00%> (+0.08%)	⬆️

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

Files Changed	Coverage Δ
...a/org/opensearch/sql/analysis/AnalysisContext.java	100.00% <ø> (ø)
...org/opensearch/sql/analysis/HighlightAnalyzer.java	100.00% <ø> (ø)
...ensearch/sql/analysis/NamedExpressionAnalyzer.java	100.00% <ø> (ø)
.../org/opensearch/sql/analysis/symbol/Namespace.java	100.00% <ø> (ø)
...h/sql/exception/ExpressionEvaluationException.java	100.00% <ø> (ø)
...opensearch/sql/exception/QueryEngineException.java	100.00% <ø> (ø)
...ensearch/sql/exception/SemanticCheckException.java	100.00% <ø> (ø)
.../org/opensearch/sql/executor/ExecutionContext.java	100.00% <ø> (ø)
...main/java/org/opensearch/sql/executor/QueryId.java	100.00% <ø> (ø)
...java/org/opensearch/sql/executor/QueryManager.java	100.00% <ø> (ø)
... and 81 more

[Yury-Fridlyand]

Please, disable checkstyle and rerun spotless