GHSA-4g82-3jcr-q52w Malware in ctx

• PyPI ctx: <= 0.1.4 (no fix yet)

The `ctx` hosted project on PyPI was taken over via user account compromise and replaced with a malicious project which contained runtime code that collected the content of `os.environ.items()` when instantiating `Ctx` objects. The captured environment variables were sent as a base64 encoded query parameter to a heroku application running at `https://anti-theft-web.herokuapp.com`. If you installed the package between May 14, 2022 and May 24, 2022, and your environment variables contain sensitive data like passwords and API keys (like `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY`), we advise you to rotate your passwords and keys, then perform an audit to determine if they were exploited.