Replace ThreadPool with ThreadPoolExecutor for async_req#633

yonatan-genai wants to merge 3 commits intopinecone-io:mainpinecone-io/pinecone-python-client:mainfrom

yonatan-genai:fix/replace-threadpool-with-executoryonatan-genai/pinecone-python-client:fix/replace-threadpool-with-executorCopy head branch name to clipboard