Revert the temporary RRF pagination fix

[papa99do]

Change Summary

The temporary pagination RRF fix might make the pagination less stable for some data set. Revert the change now

Related Jira Ticket

Checklist

• Tests have been added for changes
• Documentation has been updated
• Breaking changes are clearly identified
• Python client changes linked or N/A

For new field types:

• Tests cover score modifier usage of this new type
• Test indexes updated to cover the new type for all APIs (add docs, search, partial update, etc.)

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Note

Escapes special characters in typeahead queries, standardizes Vespa timeouts (incl. vector count queries) and HTTP client behavior, adds a metrics logger, and bumps version to 2.24.3 with corresponding tests.

• Typeahead:
  • Escape special characters in tokens for YQL via Typeahead._escape_token(); apply to retrieval and ranking terms using CHARACTERS_TO_BE_ESCAPED_IN_VESPA.
  • Add unit/integration tests covering quotes/backslashes and mixed cases.
• Vespa Client:
  • query() timeout param now optional (ms); always set Vespa timeout; configure httpx read timeout to be ≥ Vespa timeout + 1s and ≥ 5s; pass timeout to httpx.Client.post.
  • Tests ensure HTTP timeout config and that client doesn’t time out before Vespa; additional timeout-related cases.
• Vector Count Queries:
  • Change timeout from '5s' to 5000 in structured_vespa_index and unstructured_vespa_index.
• Logging:
  • Add metrics logger fixed at INFO; keep uvicorn.access level tied to root. Update tests.
• Index Management Tests:
  • Adjust bootstrap migration flow to persist marqo config and remove version patching in one case.
• Version:
  • Bump __version__ to 2.24.3.

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