Dockerfile produces invalid volume "."

When using the Dockerfiles dev-target to build an image, the container fails to start with the following message:

Error response from daemon: invalid mount config for type "volume": invalid mount path: '.' mount path must be absolute

This is due to the volume-definition in the Dockerfile, which defines VOLUME. Here an absolute path seems to be required.

Environment

Docker: 20.10.12 Docker-Compose: 2.2.3

Steps to Reproduce

1. Build the docker container with the target dev (via docker-compose file in the feature/docker-compose-setup branch of meta).
2. Create the container via docker-compose up -d

Expected Result

The container is created and will start.

Actual Result

The container fails with the mentioned error-message.

Severity/Priority

This error is preventing the usage of the dockerized container, I'll provide a fix with a MR.