Reusable Workflows or different CI processes

GitHub Documentation: https://docs.github.com/en/actions/using-workflows/reusing-workflows#creating-a-reusable-workflow

Principle:

• A called workflow is defined in this repository. It utilizes the inputs and secrets keywords to define inputs or secrets that will be passed from a caller workflow.

• The caller workflow is defined in a separate repository.

  uses: epfl-si/md-infra/.github/workflows/frontend_ci.yml@main
  

Advantages :

• ensure that all projects follow the same CI/CD process
• simplified maintenance
• version control and dependency management