Situation

Currently, our CI is done by Travis. It works and its fine. However, I saw lately a Travis announcement:

we are announcing that travis-ci.org will be officially closed down completely on December 31st, 2020 [...] Open-source projects will be free as they always have

Possible Solution/Idea

As we need to change this anyway, we could consider of these options:

• Move to travis-ci.com
• Move to GitHub Actions

Additional context

https://docs.github.com/en/free-pro-team@latest/actions