community[patch]: update the default hf bge embeddings (#22627)

**Description:** This updates the langchain_community > huggingface >
default bge embeddings ([the current default recommends this
change](https://huggingface.co/BAAI/bge-large-en))
**Issue:** None
**Dependencies:** None
**Twitter handle:** @jonzeolla

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

templates/self-query-qdrant/README.md

@@ -92,9 +92,10 @@ from langchain.chains.query_constructor.schema import AttributeInfo
 
 from self_query_qdrant.chain import create_chain
 
+model_name = "sentence-transformers/all-mpnet-base-v2"
 chain = create_chain(
     llm=Cohere(),
-    embeddings=HuggingFaceEmbeddings(),
+    embeddings=HuggingFaceEmbeddings(model_name=model_name),
     document_contents="Descriptions of cats, along with their names and breeds.",
     metadata_field_info=[
         AttributeInfo(name="name", description="Name of the cat", type="string"),
@@ -112,8 +113,9 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 
 from self_query_qdrant.chain import initialize
 
+model_name = "sentence-transformers/all-mpnet-base-v2"
 initialize(
-    embeddings=HuggingFaceEmbeddings(),
+    embeddings=HuggingFaceEmbeddings(model_name=model_name),
     collection_name="cats",
     documents=[
         Document(
@@ -145,7 +147,7 @@ langchain serve
 
 ### Local Server
 
-This will start the FastAPI app with a server running locally at 
+This will start the FastAPI app with a server running locally at
 [http://localhost:8000](http://localhost:8000)
 
 You can see all templates at [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs)