GitLab

* feat(docker): Add opencontainers image-spec to `Dockerfile`

This PR makes few changes to improve the overall quality of the docker image 🐳 . For reference more annotations can be found [here](https://github.com/opencontainers/image-spec/blob/main/annotations.md)

* feat(docker): add inline version declaration

* fix(docker): drop `org.opencontainers.image.version` LABEL