[Refactor] Update Imports to Match OpenSearch

[sejli]

Description

Fixes our build issues and update imports to reflect the library changes in OpenSearch.
Tested using ./gradlew clean build and ./gradlew check.

Issues Resolved

#167

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed as 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 #168 (3a17bed) into main (721a695) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #168   +/-   ##
=========================================
  Coverage     83.44%   83.44%           
  Complexity      331      331           
=========================================
  Files            42       42           
  Lines          1250     1250           
  Branches        153      153           
=========================================
  Hits           1043     1043           
  Misses          130      130           
  Partials         77       77           

Impacted Files	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