Weaviate Python client (v4) goes GA

The Weaviate Python client library has reached general availability with a new API that is more powerful and easier to use. This update includes collection-based interactions and default property returns in queries, making the code more concise and user-friendly. Additionally, the v4 client offers IDE assistance/autocomplete, speed improvements through gRPC usage, and enhanced typing and type safety. The new client also provides batch operations with rate limiting capabilities and improved error handling during batching operations.