Autobuild standalone docker images using CI

[timthelion]

Now that we have the standalone config for the helpdesk it would be cool to autobuild images for this in the CI.

[uhurusurfa]

Is the aim to test containerisation script or to auto deploy a default container build to a container repository?
Either seems like a good idea.

[timthelion]

To autodeploy, so people csn just add helpdesk to docker compose or k8s without cloning the git repo, building the image, and having to push it somewhere by hand...

[uhurusurfa]

👍 - it can be added to the existing release workflow that pushes to PyPi. I still need to enhance that further to push the docs to the readthedocs website.