Add instrumentation to Mistral integration to support observability for chat and embedding models.
Demo app for manual verification: https://github.com/ThomasVitale/llm-apps-java-spring-ai/tree/main/10-observability/observability-models-mistral-ai
Comment From: markpollack
grazie mille! merged in 80fe5e48970edd824e56d95700513d903335688d