Milvus 2.2.12: Easier Access, Faster Vector Search Speeds, and Better User Experience

Milvus 2.2.12 introduces RESTful API support, allowing users to access Milvus without installing a client, simplifying client-server operations. It also enables vector retrieval during Approximate Nearest Neighbor (ANN) searches by allowing the vector field to be an output field in HNSW-, DiskANN-, or IVF-FLAT-indexed collections. The `json_contains` function is added for JSON array operations. Performance enhancements include reduced overhead for extensive topk searches, improved write performance in partition-key-enabled and multi-partition scenarios, and optimized CPU usage for large machines. Various issues related to disk usage, compaction, data deletion, and bulk insertion failures are also addressed.