Change QueryRescorer.QueryRescoreContext query processing as per changes in core

[rithin-pullela-aws]

Description

With these latest changes from Core: opensearch-project/OpenSearch#18697 the build of LTR fails with this error:

> Task :compileJava
/tmp/tmp7o2tt_my/opensearch-learning-to-rank-base/src/main/java/com/o19s/es/ltr/logging/LoggingFetchSubPhase.java:127: error: cannot find symbol
            inspectQuery(qrescore.query())
                                 ^
  symbol:   method query()
  location: variable qrescore of type QueryRescoreContext
/tmp/tmp7o2tt_my/opensearch-learning-to-rank-base/src/main/java/com/o19s/es/ltr/logging/LoggingFetchSubPhase.java:132: error: cannot find symbol
                            + qrescore.query().getClass().getSimpleName()

This PR fixes these errors.

This issue was not surfaced before because it was pulling the older version on opensearch snapshots. Updated the build.gradle to get the latest snapshots

Issues Resolved

List any issues this PR will resolve, e.g. Closes [...].

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