Add odd-length reverse test for list-ops

[VelpulaGangavardhan]

Summary

• Sync the missing odd-length list reversal test case into the Java track.
• Add a test verifying that reversing [1, 3, 5, 7, 9, 11, 13] produces [13, 11, 9, 7, 5, 3, 1].
• Update the list-ops test metadata using Configlet.

Resolves #3169.

Testing

• .\gradlew.bat practice:list-ops:test — BUILD SUCCESSFUL.
• Confirmed that the new odd-length reversal test passes.

[github-actions]

This PR touches files which potentially affect the outcome of the tests of an exercise. This will cause all students' solutions to affected exercises to be re-tested.

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[no important files changed]

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[kahgoh]

Since the description has changed for the non-empty list, could you please also update testReversingNonEmptyList to match new description?

[VelpulaGangavardhan]

Updated the existing even-length reverse test name and method to match the new description in tests.toml. I pushed the change in commit 7aab6b1 and reran .\gradlew.bat practice:list-ops:test; all tests passed.