feat(rerankers): Add new backend, support jina rerankers API

[mudler]

Description

This PR fixes #2018 . It was quite easy out to assemble as rerankers have a very good support for models out there.

It adds support for rerankers API, specifically implements the jina reranker APIs documented here: https://jina.ai/reranker/#apiform, behind the hoods, uses https://github.com/AnswerDotAI/rerankers for calculations.

Notes for Reviewers

You can test this by using container images with python (this does NOT work with core images) and a model config file like this:

name: jina-reranker-v1-base-en
backend: rerankers
parameters:
  model: cross-encoder

usage: |
    You can test this model with curl like this:

    curl http://localhost:8080/v1/rerank \
      -H "Content-Type: application/json" \
      -d '{
      "model": "jina-reranker-v1-base-en",
      "query": "Organic skincare products for sensitive skin",
      "documents": [
        "Eco-friendly kitchenware for modern homes",
        "Biodegradable cleaning supplies for eco-conscious consumers",
        "Organic cotton baby clothes for sensitive skin",
        "Natural organic skincare range for sensitive skin",
        "Tech gadgets for smart homes: 2024 edition",
        "Sustainable gardening tools and compost solutions",
        "Sensitive skin-friendly facial cleansers and toners",
        "Organic food wraps and storage solutions",
        "All-natural pet food for dogs with allergies",
        "Yoga mats made from recycled materials"
      ],
      "top_n": 3
    }'

Signed commits

• Yes, I signed my commits.

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[mudler]

needs to add documentation - but I plan to do a follow up by adding:

• add rerankers to the galleries
• add parler-tts example to the gallery
• documentation updates for rerankers and parler-tts