CNDB-13591: Go back to storing byte buffers in the cache

[blambov]

What is the issue

https://github.com/riptano/cndb/issues/9104 included conversion of ByteBuffers to addresses to decrease the space usage of the chunk cache. This seems to cause a lot of chunk cache corruption (see https://github.com/riptano/cndb/issues/13591).

What does this PR fix and why was it fixed

Switches back to storing the passed ByteBuffers.

[github-actions]

Checklist before you submit for review

• Make sure there is a PR 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 DataStax copyright header instead of the Apache License one

[sonarqubecloud]

Quality Gate failed

Failed conditions
76.2% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[cassci-bot]

❌ Build ds-cassandra-pr-gate/PR-1678 rejected by Butler

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2 new test failure(s) in 2 builds
See build details here

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Found 2 new test failures

Test	Explanation	Branch history	Upstream history
...titionsTest.testServiceTopPartitionsSingleTable	regression	🔴🔵	🔵🔵🔵🔵🔵🔵🔵
o.a.c.u.b.BinLogTest.testTruncationReleasesLogS...	regression	🔴🔵	🔵🔵🔵🔵🔵🔵🔵

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Found 1 known test failures

[JeremiahDJordan]

This has been merged in #1719