PyPI Publishing Protocol

You play as a PyPI package maintainer, entrusted with the responsibility of publishing secure and trusted packages to PyPI. Your objective is to configure PyPI to trust an identity provided by a given OpenID Connect Identity Provider (IdP) and publish packages only from a specific GitHub Actions environment. You must strategize the deployment and configuration of trusted publishers to securely manage the release workflows and maintain the verifiable link between the package and its source repository. Beware of potential security threats and stay ahead of the curve by adopting new security measures as they become available.