4.0.0

• Replace requests with aiohttp - PR #440
• Replace xmlrpc2 with aiohttp-xmlrpc - PR #404
• Only store PEP503 Normalized Simple API directories - PR #465 + #455
• Flag errors when KeyboardInterrupt raised during sync - PR #421
• Finish Windows Support + Add CI - PRs #469 + #471 - Thanks @FaustinCarter
• Autobuild Docker images with master - PR #88 - Thanks @abitrolly
• Only print conf deprecations if found in config - PR #327
• Add PyPI metadata and Python version plugin filters - PR #391 - Thanks @TemptorSent
• Add in GitHub Actions CI for Linux (Ubuntu), MacOSX + Windows