Copilot metrics retention strategy

[cfabriziohivemq]

This strategy ensures data retention for more than 28 days. It involves:

• A GitHub Action scheduled weekly to generate a metric.json file.
• A Python application to convert the JSON into a SQLite database.
• Metabase for data visualization.

Key changes

• Scheduled Trigger: Adding a scheduled trigger, updating the action version, and implementing a step to commit and push changes.
• Updated Action Version: Changed the uses field to reference a specific commit hash (5b9ef15ce66fc883afb3b6127f960e44d5233a50) for the ambilykk/copilot-metrics-retention action to ensure stability and reproducibility.
• Commit and Push Step: Added a new step to configure Git, commit changes if the metrics.json file was updated, and push the changes back to the repository.

[ymengesha]

Left some questions and suggestions!