[Backport 2.x] [Spotless] Applying Google Code Format for core #5 (#1951)

[MitchellGale]

Description

Based off #1930, #1931. #1932. #1933 and applies spotless to entire core project. Covers remaining fixes not covered by PR 1-4.

Issues Resolved

#1101

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 #1996 (5045c99) into 2.x (d205bd6) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##                2.x    #1996   +/-   ##
=========================================
  Coverage     97.51%   97.51%           
  Complexity     4658     4658           
=========================================
  Files           408      408           
  Lines         11930    11931    +1     
  Branches        831      831           
=========================================
+ Hits          11633    11634    +1     
  Misses          290      290           
  Partials          7        7           

Flag	Coverage Δ
sql-engine	97.51% <100.00%> (+<0.01%)	⬆️

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Files Changed	Coverage Δ
...g/opensearch/sql/data/model/AbstractExprValue.java	100.00% <ø> (ø)
...a/org/opensearch/sql/data/model/ExprTimeValue.java	100.00% <100.00%> (ø)
...org/opensearch/sql/data/type/WideningTypeRule.java	100.00% <100.00%> (ø)