CNDB-18236: DO NOT MERGE, ONLY FOR TEST PURPOSES

[ekaterinadimitrova2]

What is the issue

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Enabled hierarchy and FusedPQ for test purposes. DO NOT REVIEW OR COMMIT THIS PR! Will be removed to draft after CI is run (draft PR does not trigger CI)

What does this PR fix and why was it fixed

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[github-actions]

Checklist before you submit for review

• This PR adheres to the Definition of Done
• Make sure there is a PR and ticket in the CNDB project updating the Converged Cassandra version
• Use NoSpamLogger for log lines that may appear frequently in the logs
• Verify test results on Butler
• Test coverage for new/modified code is > 80%
• Proper code formatting
• Proper title for each commit staring with the project-issue number, like CNDB-1234
• Each commit has a meaningful description
• Each commit is not very long and contains related changes
• Renames, moves and reformatting are in distinct commits
• All new files should contain the IBM copyright header instead of the Apache License one (no DataStax copyright any longer)

[plpesvc-ds]

❌ Build ds-cassandra-pr-gate/PR-2478 rejected by Butler

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8 regressions found
See build details here

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Found 8 new test failures

Test	Explanation	Runs	Upstream
o.a.c.db.MultiRangeReadCommandCQLTest.testToCQLString (compression)	REGRESSION	🔴	0 / 30
o.a.c.db.PartitionRangeReadCommandCQLTest.testToCQLString (compression)	REGRESSION	🔴	0 / 30
o.a.c.db.SinglePartitionReadCommandCQLTest.testToCQLString (compression)	REGRESSION	🔴	0 / 30
o.a.c.index.sai.cql.VectorCompaction100dTest.testCompactionWithEnoughRowsForPQAndDeleteARow[version=ec enableNVQ=false]	REGRESSION	🔴	0 / 30
o.a.c.index.sai.cql.VectorDotProductWithLengthTest.testTrueDotproduct[ec] (compression)	REGRESSION	🔴	0 / 30
o.a.c.index.sai.cql.VectorDotProductWithLengthTest.testTrueDotproduct[ed] (compression)	REGRESSION	🔴	0 / 30
o.a.c.index.sai.cql.VectorDotProductWithLengthTest.testTrueDotproduct[fa] (compression)	REGRESSION	🔴	0 / 30
o.a.c.index.sai.cql.VectorSiftSmallTest.testMultiSegmentBuild[ed false]	REGRESSION	🔴	0 / 30

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Found 4 known test failures