[Backport 2.x] [Refactor] Update Imports to Match OpenSearch

[opensearch-trigger-bot]

Backport f51c12c from #168

[mingshl]

Please don't merge this backport until the PR in core get back ported to 2.x opensearch-project/OpenSearch#8157

[sejli]

It was backported in this PR. I'm waiting to get this merged in after the Maven artifacts for 2.x are updated.

[mingshl]

It was backported in this PR. I'm waiting to get this merged in after the Maven artifacts for 2.x are updated.

great! sounds like a plan!

[codecov]

Codecov Report

Merging #170 (931f2fd) into 2.x (4bc0ea9) will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##                2.x     #170      +/-   ##
============================================
+ Coverage     83.44%   83.45%   +0.01%     
- Complexity      331      332       +1     
============================================
  Files            42       42              
  Lines          1250     1251       +1     
  Branches        153      153              
============================================
+ Hits           1043     1044       +1     
  Misses          130      130              
  Partials         77       77              

Files Changed	Coverage Δ
...search/search/relevance/SearchRelevancePlugin.java	0.00% <ø> (ø)
...rch/relevance/actionfilter/SearchActionFilter.java	85.45% <ø> (ø)
...e/configuration/SearchConfigurationExtBuilder.java	67.64% <ø> (ø)
...evance/configuration/TransformerConfiguration.java	100.00% <ø> (ø)
...ntelligentranking/client/KendraClientSettings.java	97.36% <ø> (ø)
...configuration/KendraIntelligentRankerSettings.java	83.33% <ø> (ø)
...uration/KendraIntelligentRankingConfiguration.java	82.65% <ø> (ø)
.../KendraIntelligentRankingConfigurationFactory.java	0.00% <ø> (ø)
...nking/model/KendraIntelligentRankingException.java	100.00% <ø> (ø)
...igentranking/client/PersonalizeClientSettings.java	96.55% <ø> (ø)
... and 2 more

... and 1 file with indirect coverage changes