add deepseek embeddings

Author: VinciGit00

scrapegraphai/graphs/abstract_graph.py

@@ -231,6 +231,8 @@ def _create_default_embedder(self, llm_config=None) -> object:
                                                 model="models/embedding-001")
         if isinstance(self.llm_model, OpenAI):
             return OpenAIEmbeddings(api_key=self.llm_model.openai_api_key)
+        elif isinstance(self.llm_model, DeepSeek):
+            return OpenAIEmbeddings(api_key=self.llm_model.openai_api_key)   
         elif isinstance(self.llm_model, AzureOpenAIEmbeddings):
             return self.llm_model
         elif isinstance(self.llm_model, AzureOpenAI):