[v2] reupload reranking datasets in old format

[Samoed]

Closes #1878

• "MindSmallReranking",
• "SciDocsRR",
• "StackOverflowDupQuestions",
• "WebLINXCandidatesReranking",
• "AlloprofReranking",
• "SyntecReranking",
• "VoyageMMarcoReranking",
• "ESCIReranking",
• "MIRACLReranking",
• "WikipediaRerankingMultilingual",
• "RuBQReranking",
• "T2Reranking",
• "MMarcoReranking",
• "CMedQAv1-reranking",
• "CMedQAv2-reranking",
• "NamaaMrTydiReranking",

Code Quality

• Code Formatted: Format the code using make lint to maintain consistent style.

Documentation

• Updated Documentation: Add or update documentation to reflect the changes introduced in this PR.

Testing

• New Tests Added: Write tests to cover new functionality. Validate with make test-with-coverage.
• Tests Passed: Run tests locally using make test or make test-with-coverage to ensure no existing functionality is broken.

@orionw Can you review, please?

[orionw]

Looks great @Samoed, thanks for finalizing this.

My only question is does this affect the listing of tasks? e.g. what distinguishes reranking vs retrieval now, when you load with the mteb.load_tasks for reranking only? I would assume we need some mapping now to maintain that they are reranking tasks.

EDIT: perhaps that's in the task meta? If so then I have no concerns.

[Samoed]

These tasks will still have type="Reranking" in their TaskMetadata, so this won’t break anything. However, for now, I think I’ll roll back the RerankingTask deletion since there might be more reranking tasks from main that need to be uploaded. I’ll wait for #2116 to be merged, as it includes a new reranking task.