Update probability_llm.env.example with newer models and APIs

Author: FunnyRabbitIsAHabbit

probability_llm.env.example

@@ -1,8 +1,8 @@
 # API to make predictions ----------------------------------
 DEFAULT_PREDICTION_API=PROBABILITY_LLM
-LLM_BASE_URL=https://generativelanguage.googleapis.com/v1beta
+LLM_BASE_URL=https://api.groq.com/openai/v1
 LLM_API_KEY=api_key_no_brackets_nor_quotes
-LLM_MODEL=gemini-2.0-flash
+LLM_MODEL=openai/gpt-oss-120b
 # ----------------------------------------------------------
 
 # Probability range ----------------------------------------