refac: retain metadata for collection

backend/open_webui/apps/retrieval/vector/dbs/chroma.py

@@ -70,10 +70,9 @@ class ChromaClient:
             return None
 
     def query(
-        self, collection_name: str, filter: dict, limit: int = 2
+        self, collection_name: str, filter: dict, limit: Optional[int] = None
     ) -> Optional[GetResult]:
         # Query the items from the collection based on the filter.
-
         try:
             collection = self.client.get_collection(name=collection_name)
             if collection:
@@ -82,8 +81,6 @@ class ChromaClient:
                     limit=limit,
                 )
 
-                print(result)
-
                 return GetResult(
                     **{
                         "ids": [result["ids"]],