new: update prefetch structure, fix start from pydantic v1 bug

[joein]

• Replace prefetch search_params with params
• Replace multivec_config in rest structures with multivector_config
• Regenerate models to include fix for bug with StartFrom and pydantic v1

based on https://github.com/qdrant/qdrant/pull/4533

[netlify[bot]]

✅ Deploy Preview for poetic-froyo-8baba7 ready!

Name	Link
🔨 Latest commit	857f0bb4c1f0f8cde46ec2314cbb2a2f78c7b237
🔍 Latest deploy log	https://app.netlify.com/sites/poetic-froyo-8baba7/deploys/6678bf0ddd8f0d0008edd8ed
😎 Deploy Preview	https://deploy-preview-656--poetic-froyo-8baba7.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.