Removed the dependencies contained in `test.txt`, `dev.txt`, and
`constraints.txt` from the things that get installed in the docker
image. In order to keep testing the image (running the tests), I added a
step to the `docker-test` make target to install `test.txt` and
`dev.txt`. Thus we presumably get a smaller image (probably not much
smaller), reduce the dependency chain or our images, and have less
exposure to vulnerabilities while still testing as robustly as before.
Incidentally, I removed the `Dockerfile` for our ubuntu image, since it
made reference to non-existent make targets, which tells me it's stale
and wasn't being used.
### Review:
- Reviewer should ensure the dev and test dependencies are not being
installed in the docker image. One way to check is to check the logs in
CI, and note, e.g. that
[this](https://github.com/Unstructured-IO/unstructured/actions/runs/14112971425/job/39536304012#step:3:1700)
is the first reference to `pytest` in the docker build and test logs,
after the image build is completed.
- Reviewer should ensure docker image is still being tested in CI and is
passing.
