QdrantVectorStore cannot be used in a truly async form, no alternative is provided

### Checked other resources - [x] This is a bug, not a usage question. For questions, please use the LangChain Forum (https://forum.langchain.com/). - [x] I added a clear and descriptive title that summarizes this issue. - [x] I used the GitHub search to find a similar question and didn't find it. - [x] I am sure that this is a bug in LangChain rather than my code. - [x] The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package). - [x] I read what a minimal reproducible example is (https://stackoverflow.com/help/minimal-reproducible-example). - [x] I posted a self-contained, minimal, reproducible example. A maintainer can copy it and run it AS IS. ### Example Code ```python # pip install langchain-qdrant==0.1.4 # pip install fastembed==0.4.1 # pip install langchain-community==0.2.17 from qdrant_client import QdrantClient, AsyncQdrantClient from langchain_qdrant import QdrantVectorStore from langchain_community.embeddings import FastEmbedEmbeddings client = AsyncQdrantClient(path="foo") # QdrantClient works, I know embedding = FastEmbedEmbeddings() vs = QdrantVectorStore(client=client, collection_name="foo", embedding=embedding) ```` ### Error Message and Stack Trace (if applicable) ```` vector_config = collection_info.config.params.vectors ^^^^^^^^^^^^^^^^^^^^^^ AttributeError: 'coroutine' object has no attribute 'config' sys:1: RuntimeWarning: coroutine 'AsyncQdrantClient.get_collection' was never awaited ```` ### Description * I am trying to use langchain's support for a vector store using async calls so that the Python VM does not get blocked in these I/O calls (FastAPI with qdrant here) * Qdrant has the async client * https://github.com/langchain-ai/langchain/discussions/24772 implies that all async methods are there in QdrantVectorStore * Unfortunately we can see that the constructor can only take QdrantClient and not AsyncQdrantClient * If I try to sneak AsyncQdrantClie…