Support Jina's Embedding V4 Model

[sigridjineth]

Model description

https://huggingface.co/jinaai/jina-embeddings-v4

Open source status

• The model implementation is available
• The model weights are available

Provide useful links for the implementation

https://huggingface.co/jinaai/jina-embeddings-v4-vllm-retrieval