v7.0.0

Changes

🚀 Features

• adjust readme and docker image path (#310) @monotek
• add release drafter, remove container & rework ci (#309) @monotek

Notable changes

• Zammad version 5.2.3-35
• the Zammad Docker container is not build in this repo anmy ore but in: https://github.com/zammad/zammad
• the path of our Docker images changed in the compose file but a docker-compose up still wortks out of the box
• in the .env file the VERSION var does not use the "-" prefix anymore

Full Changelog: v6.0.0...v7.0.0