[Enhancement] Fix error message in datastore/factory.py

[dluc]

• Add missing storage options in the error message displayed by factory.py
• Sort names alphabetically, so it's easier to check if the error message is in sync with the options available.

Previous error message:

ValueError: Unsupported vector database: FooBar. Try one of the following: llama, elasticsearch, pinecone, weaviate, milvus, zilliz, redis, azuresearch, or qdrant

New error message:

ValueError: Unsupported vector database: FooBar. Try one of the following: analyticdb, azuresearch, chroma, elasticsearch, llama, milvus, pinecone, postgres, qdrant, redis, supabase, weaviate, or zilliz