Automated Org Statistics Collection and Reporting

[muscariello]

Automated Org Statistics Collection and Reporting

This PR adds and updates CI workflow steps to automate the collection and reporting of AGNTCY organization statistics:

• Adds a requirements.txt for Python dependencies (requests, playwright).
• Updates the workflow to install dependencies from requirements.txt and set up Playwright.
• Collects and uploads three types of statistics (CSV and markdown):
  • GitHub org repo stats
  • PyPI package stats
  • GHCR container download stats
• Ensures all reports are available as workflow artifacts for further analysis and documentation.

This improves reproducibility and ensures all required packages are installed for CI analytics jobs.