feat: add VoyageAI embeddings (#3069) (#3099)
Original PR was #3069. Merged in to a feature branch to fix dependency
and linting issues. Application code changes from the original PR were
already reviewed and approved.
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Original PR description:
Adding VoyageAI embeddings
Voyage AI’s embedding models and rerankers are state-of-the-art in
retrieval accuracy.
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Co-authored-by: fzowl <160063452+fzowl@users.noreply.github.com>
Co-authored-by: Liuhong99 <39693953+Liuhong99@users.noreply.github.com>
