To cut a release, wait for the "MacOS Python build", "Linux Python build", and "Windows Python build" GitHub Actions to complete successfully on the target commit.
Then, run the "Release" GitHub Action to create the release, populate the release artifacts (by downloading the artifacts from each workflow, and uploading them to the GitHub Release), and promote the SHA via the latest-release branch.
The "Release" GitHub Action takes, as input, a tag (assumed to be a date in YYYYMMDD format) and the commit SHA referenced above.
For example, to create a release on April 19, 2024 at commit 29abc56, run the "Release" workflow with the tag 20240419 and the commit SHA 29abc56954fbf5ea812f7fbc3e42d87787d46825 as inputs, once the "MacOS Python build", "Linux Python build", and "Windows Python build" workflows have run to completion on 29abc56.
When the "Release" workflow is complete, populate the release notes in the GitHub UI and promote the pre-release to a full release, again in the GitHub UI.
At any stage, you can run the "Release" workflow in dry-run mode to avoid uploading artifacts to GitHub. Dry-run mode can be executed before or after creating the release itself.