Keep workflows active

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Github will disable workflows for inactive projects, and a project goes inactive after 60 days with no commits.

This will stop smoke tests from detecting breaking changes from upstream package updates.

One solution (which I don't like, but I'm just leaving here to show there are automated solutions): https://github.com/marketplace/actions/keepalive-workflow

Alternatively, you have to pay attention to the github notifications and re-activate workflows each time you get an alert that they're being de-activated. From @DinoBektesevic:

> Every 60 days or so without a commit, you just have to go to the actions tab and press "Enable worfklow" again. The issue I have with the automatic disable isn't that it happens it's that the notifications are by default enabled just for the person that made the workflow - not all "admins" or "maintainers" of the repo. This is how sometimes these things go by unnoticed unfortunately because people don't subscribe or watch the action (which I don't think you can do). There's an email GA that can be used as a replacement I believe.

Commencez par examiner les workflows GitHub Actions du dépôt et les smoke tests qui détectent les breaking changes dus aux mises à jour de paquets upstream. Comparez l’approche automatisée de keepalive avec le processus manuel de réactivation documenté et le comportement des notifications. Le travail doit être considéré comme terminé lorsque l’approche choisie empêche les workflows d’être désactivés silencieusement après des périodes sans commits.

Rédigé par le modèle d'indexation à partir du texte de l'issue.