debian/apertis/gitlab-ci.yml: Drop since we use an external definition
Apertis has moved to using external references in the CI config path setting for the packagign repositories, so the gitlab-ci.yml embedded in the repository is no longer needed.
🟠 v2026dev0 entered Soft Code Freeze/Hard Feature Freeze, only bug fixes will be accepted • schedule
Apertis has moved to using external references in the CI config path setting for the packagign repositories, so the gitlab-ci.yml embedded in the repository is no longer needed.