Ensure the Docker image built by GitHub Actions behaves similar to one built locally

[angela-tran]

After troubleshooting and fixing the issue causing our Azure app service to not start (see #389 and #390), I noticed the version in the app service's Docker container is not correct. I then realized a huge potential reason why I haven't been able to reproduce any of the problems: I was testing with a Docker image that I locally built, and Azure is using one built by our GitHub Action!

I downloaded the image from GHCR and see the same incorrect version.

Looking at the workflow logs, I see there is a warning about a shallow copy. This issue seems relevant: pypa/setuptools-scm#414

[angela-tran]

Here's the log from Azure:

2023-12-19T21:34:56.004063843Z + bin/init.sh
2023-12-19T21:34:56.029409239Z + flask init-db
2023-12-19T21:35:01.071354056Z SENTRY_DSN not set, so won't send events
2023-12-19T21:35:01.090299054Z [2023-12-19 21:35:01,071] INFO eligibility_server.app:31 Starting Eligibility Server 0.1.dev1+g96e8f16

You can see it doesn't see any of our annotated tags