*`docker-update`: checks, whether the docker images from the repository's [container registry](https://collaborating.tuhh.de/cfg0846/research-topics-mat-tuhh/container_registry) are available and rebuilds them if the `Dockerfile`s have changed
*`docker-update`: checks, whether the docker images from the repository's [container registry](https://collaborating.tuhh.de/cfg0846/research-topics-mat-tuhh/container_registry) are available and rebuilds them if the `Dockerfile`s have changed