Analytics for PyPI packages

• pytest-xdist
• pytest-xdist-debug-for-graingert
• pytest-xdist-forked
• pytest-xdist-gnumake
• pytest-xdist-load-testing
• pytest-xdist-lock
• pytest-xdist-rate-limit
• pytest-xdist-tracker
• pytest-xdist-worker-stats