Set up workflow using gitlab runner

Once a machine is available from LAPP to host the gitlab runner, set up the workflow:

• set up the gitlab runner on the machine (docker executor)
• #25 set up renovate bot on SAG group
• set up semantic release access tokens
• implement rta container repository with CI/CD components to build images, provide sag-reco base images (in gitlab container registry)
• implement CI/CD components
• create ctao-sag and ctao-sag-dev channels for conda packages at prefix.dev (to demonstrate, to be discussed with AIV if permanent solution)
• use workflow
  • clean-up repositories
    • remove test files from history sag-parametrization#1 sag-reco-manager#1 sag-rejection#1 sag-reconstruction#1
    • implement conda package to download test files
    • use conda package in pytest fixtures at reco level
    • logging_utils package to reduce duplication
  • sag_parametrization
  • sag_reconstruction
  • sag_selection
  • sag_reco_manager
• push reco images to harbor on top/in place of gitlab container registry
• use new sonarqube instance on new repositories
• Implement junit report upload for test validation?