Fix: revert google url to proper openai extension

tinytroupe/openai_utils.py

@@ -55,7 +55,7 @@ class OpenAIClient:
         Sets up the OpenAI API configurations for this client.
         """
         if self.client is None:
-            self.client = OpenAI(api_key=os.getenv("GOOGLE_API_KEY", os.getenv("OPENAI_API_KEY", "dummy_token")), base_url="https://generativelanguage.googleapis.com/v1beta/")
+            self.client = OpenAI(api_key=os.getenv("GOOGLE_API_KEY", os.getenv("OPENAI_API_KEY", "dummy_token")), base_url="https://generativelanguage.googleapis.com/v1beta/openai/")
 
     @config_manager.config_defaults(
         model="model",