WIP: Initial workflows to support a release process

[wwsean08]

Currently a WIP/Draft PR to allow for ample input along the way for the process of creating an automated release workflow and the infrastructure around it (#71).

Changes

• Nightly build workflow - Runs once a night to update the helix_endpoints.json and if there is a change automatically opens a PR. See Updated helix endpoint data wwsean08/tau#1 as an example of the auto-pull request working.
  • Could support more things down the line
• Develop build workflow - Automatically updates a draft change log based on PRs merged into main
• Pull Request workflow - Lint/License checks and (once tests exists) runs unit tests.
  • TODO: Hopefully some sort of SAST like sonar cloud, as well as vulnerability scanning like snyk (see issue).
  • Also technically the current lint job failure is valid as it's finding lint issues, whether they are issues that we care about I don't know enough about python to know, but they seem easy enough to fix
• Release Workflow - At this point it's basically the same as the pull request workflow, but if we wanted to publish docker images, I would see it going here.