fix model_tokens not being used for ollama

I am passing in the explicit model_tokens from user config as the default_token so it will correctly fallback to the users setting if the model is not found

Author: jamie-beck

scrapegraphai/graphs/abstract_graph.py

@@ -174,8 +174,9 @@ def handle_model(model_name, provider, token_key, default_token=8192):
 
             elif "ollama" in llm_params["model"]:
                 model_name = llm_params["model"].split("ollama/")[-1]
-                token_key = model_name if "model_tokens" not in llm_params else llm_params["model_tokens"]
-                return handle_model(model_name, "ollama", token_key)
+                token_key = model_name if "model_tokens" not in llm_params else None
+                explicit_model_tokens = 8192 if "model_tokens" not in llm_params else llm_params["model_tokens"]
+                return handle_model(model_name, "ollama", token_key, explicit_model_tokens)
 
             elif "claude-3-" in llm_params["model"]:
                 return handle_model(llm_params["model"], "anthropic", "claude3")
@@ -271,4 +272,4 @@ def _create_graph(self):
     def run(self) -> str:
         """
         Abstract method to execute the graph and return the result.
-        """
+        """