LlamaIndex Neo4j Vector Store

The `llama-index-vector-stores-neo4jvector` library provides an integration for LlamaIndex to use Neo4j as a vector store. It enables storing, indexing, and querying of document embeddings within a Neo4j graph database, supporting operations like vector search, hybrid search, and metadata filtering. The current version is 0.6.0, and it maintains an active development and release cadence within the LlamaIndex ecosystem.