outdated docker image in registries

[pschiffe]

Hello, will you consider updating docker images available as https://hub.docker.com/r/curity/oidc-python-demo/tags and curity.azurecr.io/curity/oidc-python-demo?

The docker images are over 3 years old, and there are newer commits in this repo. Ideally add a pipeline to automatically build and publish images.

Cheers.