Consolidate and update GitHub workflows

[tianyizheng02]

Two potential to-dos regarding our GitHub workflows:

• [ ] We currently have two workflows, autotest.yml and tests-on-push.yml, but both run the same jobs. Is it OK to consolidate the two workflows as follows? I'd very much welcome thoughts/comments from other maintainers as to whether this would pose any issues.

  on:
    push:
      branches: [ "dev" ]
    pull_request:
      branches: [ "dev" ]
    schedule:
      - cron: '00 12 1 * *'

• [ ] Our workflows currently use Node.js 16 actions, which are deprecated. Every workflow run has an annotation notifying us of this (see this one for an example):

  run-test-suite
  Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-python@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

  Resolving these warnings should be as simple as updating actions/checkout and actions/setup-python to their latest versions.

[tianyizheng02]

@nij-patel Is it fine to consolidate the two GitHub Actions workflows into a single workflow (see above)? Or do you think that might cause issues/conflicts?

[nij-patel]

hmm, when I wrote them the intention was that auto test was an automated test to just periodically check if stuff broke over time (probably from changing source APIs). but you're right, they did end up being the same job aside from the cron scheduling

I think it would make sense to consolidate them, and try for the supported versions of checkout and setup-python