Fix cohere embedder (#1353)

embedchain/embedder/cohere.py

@@ -1,6 +1,6 @@
 from typing import Optional
 
-from langchain_community.embeddings import CohereEmbeddings
+from langchain_cohere.embeddings import CohereEmbeddings
 
 from embedchain.config import BaseEmbedderConfig
 from embedchain.embedder.base import BaseEmbedder

embedchain/utils/misc.py

@@ -451,6 +451,7 @@ def validate_config(config_data):
                     "mistralai",
                     "nvidia",
                     "ollama",
+                    "cohere",
                 ),
                 Optional("config"): {
                     Optional("model"): Optional(str),