Upgrade Faker and replace Travis with Github Actions

[davidwessman]

• Upgrade faker to allow tests to run locally
• Replace Travis with Github Actions

Running on my own PR https://github.com/davidwessman/omniauth_openid_connect/pull/1

Could not get the tests to run for Ruby 3.1, missing net/smtp.

[davidwessman]

How about maybe also adding JUnit output for tests and feeding it into https://github.com/marketplace/actions/junit-report-action? (I’m not quite sure how to do this for Ruby, but StackOverflow seems to have some solutions.)

I can look into it in a separate PR 😊

[davidwessman]

Can someone allow the checks to run if you think it looks good? Who can merge it?

[davidwessman]

@andrewshadura I updated the on: tag of the Github Action workflow to avoid duplicate jobs.

[andrewshadura]

I guess you need to ask actual maintainers to have a look 🙂

[davidwessman]

@Eric-Guo @m0n9oose Can you take a look? Who else are maintainers?

[bufferoverflow]

/cc @stanhu