OpenSearch Protobufs Python Client

The `opensearch-protobufs` library provides Protocol Buffer definitions and generated Python code for interacting with OpenSearch's gRPC APIs. It serves as a downstream consumer of the `opensearch-api-specification`, packaging pre-generated code to simplify client-server communication for various OpenSearch projects. The library is actively maintained with frequent releases, offering a high-performance alternative to traditional REST APIs through binary serialization and gRPC.