Check if the Docker image builds are still relevant (test on PRs?)

[shadaj]

Right now, it's easy to accidentally break main because we only build (and publish) images there. We should have a separate workflow for just building the image for PRs.

[MingweiSamuel]

The docker image build also occasionally fails on its own due to some networking stuff

[MingweiSamuel]

We have not broken the build in a while! https://github.com/hydro-project/hydroflow/actions/workflows/examples-container.yml

[MingweiSamuel]

Check if/what this build is doing at this point

[MingweiSamuel]

Manually disabled for now, reopen if needed