Use GitHub Actions instead TravisCI

[VictorSNA]

We want to replace travis CI by Github actions.

You can follow the example: locaweb/heartcheck#51

DoD

• Must pass all tests in forked repo;
• Must remove travis.

[BensonCasey7]

I can work on this!

[BensonCasey7]

@VictorSNA Any chance you can take a peek at the PR? I want to make sure we can get it in the right state before the end of October