Add MLflow tracing integration example

[kobindra]

Cookbook Pull Request

Description

Hi! I'm supporting MLflow. This change adds an example of using MLflow Tracing and its integration with Mistral's API. In parallel to adding this example to the Cookbook, I will be opening a PR in the Observability page of the platform-docs-public repo to reference this notebook.

...

Type of Change

What type of PR is it?

• [ x ] New Cookbook
  • [ x ] Notebook File
    • [ x ] Does it work on google colab? No. We cannot launch the MLflow Tracing UI in Colab, so this notebook is designed to be run on localhost.
  • Markdown File
• Cookbook Update
  • Code Refactoring
  • Bug Fix
• README.md Update

---

• Other (please describe):

Cookbook Checklist:

• [ x ] My code is easy to read and well structured.
• [ x ] I've tagged the versions of any dependency required.
• [ x ] I have performed a self-review of my own code.
• [ x ] I have commented my code, particularly in hard-to-understand areas.
• [ x ] My changes generate no new warnings or errors. There is a warning from MLflow (not from Mistral), which reports that MLflow Tracing was developed and tested on older versions of the mistralai package, but I chose to pin this example on the latest available from PyPI because it still works, despite the warning. I am filing an issue with MLflow to address this in future builds.

---

• My changes do not concern the cookbooks.

README.md Checklist

• [ x ] I've added my cookbook to the table.

---

• My changes do not concern the README file.

Additional Context

Add any other context or screenshots about the feature request here.

...