Add MiniMax embeddings (#5174)
- Add support for MiniMax embeddings
Doc: [MiniMax
embeddings](https://api.minimax.chat/document/guides/embeddings?id=6464722084cdc277dfaa966a)
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Co-authored-by: Archon <archongum@outlook.com>
Co-authored-by: Dev 2049 <dev.dev2049@gmail.com>
