I've submitted a draft for an example of how we could use GitHub Actions to run CI. The main benefit over TravisCI is we can run Windows jobs as well. I'm curious what others think of this approach.

One thing to note is I've seen some issues, especially on Java 8 on Windows, with the resteasy-jdk-http tests. We may need to ignore the test in that environment which I can make a change to do if we notice it being an issue.

There's also another commit I'd like to get in regardless of using GitHub Actions which allows various tests to pass on other environments such as Windows.