Automate milestone changes after release

[ggonzalez94]

🧐 Motivation Everytime there's a relese, the milestones need to be adjusted in order to accomodate the new cycle. The way it's done today:

1. Delete current milestone
2. Change the name of the other milestones(next -> current and after -> next)
3. Create a new milestone named after

This can probably be automated via GH actions and can be run manually after every major release.

[ggonzalez94]

@andrew-fleming This is the process correct?

[andrew-fleming]

This is the process correct?

It can get weird with the milestone numbers that way. I also really don't like changing the name to bump. I do it like this:

1. In the kanban, archive all issues in "Resolved"
2. In the "Next" tab, change the "next" milestone in each issue to "current"
3. Do the same with "After" to "Next"
4. Go through backlog and add new issues to "After"

IMO this is less error prone since we're only changing the status of the issues through the dropdown menu