bug: Chroma needs diff client as per settings (#342)

embedchain/vectordb/chroma_db.py

@@ -18,15 +18,20 @@ class ChromaDB(BaseVectorDB):
         if host and port:
             logging.info(f"Connecting to ChromaDB server: {host}:{port}")
             self.settings = Settings(chroma_server_host=host, chroma_server_http_port=port)
+            self.client = chromadb.HttpClient(self.settings)
         else:
             if db_dir is None:
                 db_dir = "db"
-            self.settings = Settings(persist_directory=db_dir, anonymized_telemetry=False, allow_reset=True)
+            self.settings = Settings(anonymized_telemetry=False, allow_reset=True)
+            self.client = chromadb.PersistentClient(
+                path=db_dir,
+                settings=self.settings,
+            )
         super().__init__()
 
     def _get_or_create_db(self):
         """Get or create the database."""
-        return chromadb.Client(self.settings)
+        return self.client
 
     def _get_or_create_collection(self):
         """Get or create the collection."""