Eliminate the docker service from the GitLab CI build stage. This change
simplifies the configuration and reduces dependency overhead, as it is
not needed for the current build process.
This commit removes the redundant Docker-related variables from the
`.gitlab-ci.yml` file to simplify the CI configuration. The removed
variables are not utilized in the current build process and their
absence improves clarity and maintainability of the CI setup.
argoyle
