Support Rails 7.1

[sebaherrera07]

• Also added newer versions for Travis CI

[sebaherrera07]

/reviewme @grodowski @magni-

[ukd1]

I'm pretty sure Travis builds aren't running anymore, so we should probably replace that config with either a CircleCI config or a GH Actions workflow.

Also GH actions would be ideal/great for here, as the main project uses that

[sebaherrera07]

Also GH actions would be ideal/great for here, as the main project uses that

Haven't seen this until today 😅 . Just added a GitHub action, but not sure if it won't run until it gets merged because I'm not admin maybe?

@ukd1 can you review again and eventually merge it if you think is fine?

[ukd1]

@sebaherrera07 ya, I can take a look for sure - will be today or tomorrow!